Child carrier with removable flexible parts

Abstract

We provide child transport vehicles. [Solution] The child carrier comprises a carrier frame to support a removable child seat above the riding surface, the carrier frame having a lower frame portion comprising at least one front leg, a first rear leg, and a second rear leg. The carrier comprises a flexible seat assembly provided to be detachably coupled to the frame, the flexible seat assembly comprising a flexible seat having a seat back and a seat pan extending from the seat back in a seat curve, and first and second leg couplers positioned on the first and second sides of the flexible seat, respectively, to couple the seat curve to the first and second rear legs, and to be detachably attached to the first and second rear legs, respectively, so that the first and second leg couplers are positionally fixed to the first and second rear legs, respectively.

Description

[Technical Field]

[0001] Cross-reference of related applications This application claims the interests of U.S. Provisional Patent Application No. 63 / 188,163, filed on 13 May 2021, and U.S. Provisional Patent Application No. 63 / 237,431, filed on 26 August 2021, the contents of those patent applications are incorporated herein by reference as if they were fully described.

[0002] This disclosure relates, in general, to a wheeled transport vehicle for transporting children, and more particularly to a system and method for attaching a flexible seat to a child transport vehicle. [Background technology]

[0003] Child mobility systems generally include a child seat (also called an infant carrier) and a stroller (also called a baby carriage). A stroller typically comprises a frame, a child armrest attached to the frame, and a child's flexible seat attached to the frame. A stroller can be configured for use in infant mode, where the stroller supports a child seat. For example, one end of the child seat may be supported by the frame, and the other end of the child seat may be supported by the armrest. Generally, the child's flexible seat remains attached to the stroller frame while the stroller is in infant mode. A stroller can also be configured for use in infant mode without a child seat, in which case the child sits directly on the flexible seat.

[0004] Typically, in mobility systems such as those mentioned above, the flexible seat is unnecessary when a child seat is being used in the carrier in infant mode. In infant mode, the flexible seat may at least partially obstruct the child's view in the child seat and may add unnecessary bulk and weight to the carrier. Therefore, it is beneficial if the flexible seat can be easily removed from the carrier in infant mode, while still retaining sufficient structural integrity to support the child in infant mode while the child flexible seat is attached to the frame. [Overview of the Initiative] [Problems that the invention aims to solve]

[0005] Conventional transport vehicles and mobile systems are generally considered satisfactory for their intended purposes, but there is still a technical need for improved transport vehicles and mobile systems that are less bulky and easier to use. This disclosure provides a solution to this need.

[0006] The present invention relates to a mobile transport system vehicle having a removable flexible seat, and more particularly to various features for detachably connecting the flexible seat to the transport vehicle frame. [Means for solving the problem]

[0007] A child carrier is disclosed. The child carrier comprises a carrier frame for supporting a removable child seat above the riding surface, the carrier frame having a lower frame portion comprising at least one front leg, a first rear leg, and a second rear leg. The child carrier comprises a flexible seat assembly configured to be detachably coupled to the frame, the flexible seat having a seat back and a seat pan extending from the seat back in a seat curve, and a first leg coupler and a second leg coupler positioned on a first and second side of the flexible seat, respectively, the first leg coupler and the second leg coupler configured to be detachably attached to the first and second rear legs, respectively, so as to couple the seat curve to the first and second rear legs, and so as to positionally fix the first and second leg couplers to the first and second rear legs, respectively.

[0008] It has also been considered that the transport vehicle frame comprises a lower frame portion having a plurality of legs, at least one frame coupler having a first portion and a second portion spaced apart from each other to define a space between them, and a flexible seat assembly configured to be detachably connected to the frame. The flexible seat assembly comprises a flexible seat having a seat back and a seat pan extending from the seat back, and at least one seat coupler configured to be detachably connected to at least one frame coupler of the transport vehicle frame, the seat coupler being at least partially positioned in the space between the first portion and the second portion. The first portion comprises the other of a projection and opening configured to engage with one of the projections and openings of at least one seat coupler of the flexible seat assembly, and the second portion comprises the other of a projection and opening configured to engage with one of the projections and openings of at least one seat coupler of the flexible seat assembly.

[0009] It has also been considered that the child carrier has a carrier frame configured to support a removable flexible seat assembly above the riding surface, the carrier frame having a lower frame portion having a plurality of legs, and a handle having a first handle portion and a second handle portion extending away from the lower frame portion and spaced apart from each other to define a space between them. The child carrier also has a flexible seat assembly configured to be removablely connected to the frame and to fit into a defined space, the flexible seat assembly having a seat back, a seat pan extending forward from the seat back, and a flexible seat having a first side wall and a second side wall extending forward from the seat back, an upper coupler configured to be removablely connected to a first handle portion to the first side wall, and a lower coupler configured to be removablely connected to a first handle portion to the first side wall. The child transport cart is configured such that the first side wall can be attached to the first handle portion by connecting the upper handle connector to the first handle portion, and then connecting the lower connector to the first handle portion.

[0010] It has also been considered that the child carrier has a carrier frame configured to support a removable flexible seat assembly above the riding surface, the carrier frame having a lower frame portion having a plurality of legs, and a handle having a first handle portion and a second handle portion extending upward from the lower frame portion and spaced apart from each other to create space between them for the flexible seat assembly. The flexible seat assembly configured to be removablely connected to the frame comprises a seat back, a seat pan extending forward from the seat back, and a flexible seat having a first side wall and a second side wall extending forward from the seat back, a canopy having a curved portion, and a coupler configured to connect both the first side wall and the curved portion to a first handle portion.

[0011] It has also been considered that the child carrier has a carrier frame having first and second sides spaced apart from each other laterally to define space between them, a pair of rear legs spaced apart from each other laterally, and at least one front leg, and at least one folding locking section configured to move between a locking position in which the carrier frame is prevented from being folded and a locking release position in which the carrier frame is permitted to be folded. The carrier also has a folding actuator having a first actuator strap operably connected to at least one folding locking section such that the movement of the actuator strap moves at least one folding locking section to the locking release position, and a transverse member extending between the first and second sides, wherein the actuator strap extends between the first and second sides, and at least a portion of the actuator strap extends below or inside the transverse member when the actuator strap extends between the first and second sides.

[0012] A method for assembling a child transport vehicle is also disclosed. The method includes the steps of connecting a first upper connector on the side wall of a first flexible seat assembly to a first connector on the upper handle portion of the transport vehicle frame; connecting a second upper connector on the side wall of a second flexible seat assembly to a second connector on the upper handle portion of the transport vehicle frame; connecting a first lower connector on the side wall of a first flexible seat assembly to a first connector on the lower handle portion of the transport vehicle frame; and connecting a second lower connector on the side wall of a second flexible seat assembly to a second connector on the lower handle portion of the transport vehicle frame.

[0013] The child carrier has a carrier frame having a lower frame portion with a first side and a second side spaced apart from each other along a lateral direction so as to define a space therebetween, a pair of rear legs spaced apart from each other along the lateral direction, and at least one front leg, a handle extending upward from the lower frame portion, at least one folding detent portion configured to transition between a detent position where the carrier frame is prevented from folding and a detent release position where the carrier frame is allowed to fold. The carrier frame also includes a folding actuator having a first actuator strap operably coupled to at least one folding detent portion, the movement of the first strap being such as to transition at least one folding detent portion to the detent release position. A flexible seat portion configured to be attached to the carrier frame between the first side and the second side is also provided. The flexible seat portion includes a seat back, a seat pan extending from the seat back at a seat curvature, a second actuator strap, and a coupler configured to connect the first actuator strap and the second actuator strap to each other such that movement of the first actuator strap causes movement of the second actuator strap to transition at least one folding detent portion to the detent release position.

[0014] The following description of the illustrated embodiments can be better understood when read in conjunction with the accompanying drawings. It is understood that the disclosed systems and potential embodiments of the offering are not limited to what has been depicted.

Brief Description of the Drawings

[0015] [Figure 1] FIG. 1 is a perspective view of an example child carrier having a carrier frame and a removable flexible seat assembly. [Figure 2] FIG. 2 is a perspective view of the carrier frame of the child carrier of FIG. 1 with the flexible seat assembly removed. [Figure 3]Perspective view of the carrier frame of FIG. 2 with a child seat attached. [Figure 4] Perspective view of the lower end of the carrier frame of FIG. 1. [Figure 5] Perspective view of the underside of the detachable flexible seat portion of FIG. 1. [Figure 6] Perspective view of the rear leg portion of the carrier frame of FIG. 2 having a seat curvature connector configured to connect the seat curvature portion of the flexible seat portion to the carrier frame. [Figure 7] Perspective view of the rear leg portion of FIG. 6 with the seat curvature connector of the flexible seat portion connected to the seat curvature connector of the leg. [Figure 8] Cross-sectional view of the rear leg portion of FIG. 7 with the seat curvature connector of the flexible seat portion connected to the seat curvature connector of the leg. [Figure 9] First perspective view of the seat curvature connector of the flexible seat portion of FIG. 7. [Figure 10] Second perspective view of the seat curvature connector of the flexible seat portion of FIG. 7. [Figure 11] First perspective view of the seat curvature connector of the flexible seat portion of FIG. 9 with a part of the housing removed to expose the movable shuttle. [Figure 12] Perspective view of the first part of the housing of the seat curvature connector of FIG. 11. [Figure 13] Perspective view of the second part of the housing of the seat curvature connector of FIG. 11. [Figure 14] Perspective view of a part of the handle of the carrier frame of FIG. 2 including an upper handle connector configured to connect to the side wall of the flexible seat portion. [Figure 15] Perspective view of the upper handle connector of the flexible seat portion attached to the side wall of the flexible seat portion configured to connect to the upper handle connector of FIG. 14. [Figure 16] Perspective view of a part of the handle of FIG. 14 with the upper handle connector of FIG. 15 attached to the upper handle connector of a part of the handle. [Figure 17]This is a plan view of the upper part of an example child carrier, Figure 1, with the canopy removed to show the attachment of the flexible seat to the parental body. [Figure 18] Figure 17 shows a cross-sectional side view of the parent molded body and a portion of the flexible material seat received by the parent molded body. [Figure 19] This is a perspective view of a portion of the handle of the transport vehicle frame shown in Figure 2, to which the lower side wall connector of the flexible seat is connected. [Figure 20] Figure 19 is a perspective view of a portion of the handle, with the lower side wall connector removed. [Figure 21] This is a perspective view of the lower side wall connector attached to the side wall of the flexible object seat. [Figure 22] Figure 2 is an exploded view of the folding hub of the transport vehicle frame. [Figure 23A] Figure 22 is a side view of the folding hub in multiple positions, with the outer cover shown transparent to indicate the armrest retaining mechanism of the transport vehicle frame. [Figure 23B] Figure 22 is a side view of the folding hub in multiple positions, with the outer cover shown transparent to indicate the armrest retaining mechanism of the transport vehicle frame. [Figure 23C] Figure 22 is a side view of the folding hub in multiple positions, with the outer cover shown transparent to indicate the armrest retaining mechanism of the transport vehicle frame. [Figure 23D] Figure 22 is a side view of the folding hub in multiple positions, with the outer cover shown transparent to indicate the armrest retaining mechanism of the transport vehicle frame. [Figure 23E] Figure 22 is a side view of the folding hub in multiple positions, with the outer cover shown transparent to indicate the armrest retaining mechanism of the transport vehicle frame. [Figure 23F] Figure 22 is a side view of the folding hub in multiple positions, with the outer cover shown transparent to indicate the armrest retaining mechanism of the transport vehicle frame. [Figure 24]This is a perspective view of the transport frame of the child transport vehicle shown in Figure 1, in a second example where the flexible seat assembly has been removed. [Figure 25] Figure 24 is a perspective view of the lower part of the transport vehicle frame. [Figure 26] Figures 1, 2, and 24 show the lower portion of the transport vehicle frame in relative perspective views. [Figure 27] This is a perspective view of the coupling of the transport vehicle frame in Figure 24, according to the second example. [Figure 28] This is a perspective view of the coupler of the flexible seat assembly, which is configured to be connected to the coupler in Figure 27. [Figure 29] This is a perspective view of the handle of the transport vehicle frame in Figure 24, according to the second example. [Figure 30] This is a perspective view of the rear portion of the transport vehicle in Figure 24, according to the second example. [Figure 31] Figure 24 is a perspective view of the upper handle coupling on the transport vehicle frame. [Figure 32] This is a plan view of the upper handle connector shown in Figure 31. [Figure 33] This is a perspective view of the upper handle connector of the flexible seat assembly, which is configured to be connected to the upper handle connector in Figure 32. [Figure 34] Figure 24 is a cross-sectional view of a portion of the handle and caregiver-oriented structure of the transport vehicle frame. [Figure 35] Figures 1, 2, and 24 are front perspective views of the lower portion of the child carrier. [Figure 36] Figure 24 is a rearward perspective view of the lower part of the child transport vehicle. [Figure 37] Figures 1, 2, and 24 show cross-sectional views of the cross members of the transport vehicle frame, illustrating a portion of the folding actuator of the transport vehicle frame in a non-operating position. [Figure 38] Figures 1, 2, and 24 show cross-sectional views of the cross members of the transport vehicle frame, illustrating a portion of the folding actuator of the transport vehicle frame in the operating position. [Figure 39]Figures 1, 2, and 24 show perspective views of the couplers configured to connect pairs of actuator straps on a child carrier to one another. [Modes for carrying out the invention]

[0016] Referring here to the drawings, similar reference numerals identify similar structural features and aspects of the disclosure of this subject matter. For illustrative and illustrative purposes, but not limiting, illustrations of exemplary embodiments of the transport vehicle according to this disclosure are shown in Figure 1, generally indicated by reference numeral 10. Other embodiments or aspects thereof of the transport vehicle according to this disclosure are provided in Figures 2 to 39, as described.

[0017] Referring here to Figure 1, the child carrier 10 of this disclosure comprises a carrier frame 100, 100' and a flexible seat assembly 200 configured to be detachably attached to the carrier frame 100, 100'. Figures 2 and 3 show an example of the carrier frame 100, and Figure 24 shows another example of the carrier frame 100'. The flexible seat assembly 200 defines a seat for a child, such as a toddler. In one example, the child carrier 10 comprises one or both of a canopy 300 and a basket 400. The child carrier 10 is configured to transition between a first seating configuration (Figure 1) in which the flexible seat assembly 200 is attached to the carrier frame 100, 100' to support a child, such as a toddler, and a second seating configuration (Figures 2, 24) in which the flexible seat assembly 200 is removed and the child carrier 10 is configured to support a child seat 500 on its own. In one example, the child carrier 10 transitions to a third configuration (not shown) in which a flexible seat assembly 200 is attached to the carrier frame 100, 100', and the child carrier 10 supports the child seat 500 (shown in Figure 3) on its own. However, the caregiver can have a better view of the child when the child carrier 10 is in the second configuration (i.e., without the flexible seat assembly 200) than when the child carrier 100, 100' is in the third configuration (i.e., with the flexible seat assembly 200), because the flexible seat assembly 200 may obstruct the caregiver's view of the child in the third configuration. Furthermore, the child carrier 100, 100' is less bulky and lighter in the second configuration (i.e., without the flexible seat assembly 200) than in the third configuration (i.e., with the flexible seat assembly 200). In at least some examples, the child carrier 10 is configured to be foldable from either a first seating configuration or a second seating configuration. Thus, the child carrier 10 is configured to transition between one of the seating configurations and a folding configuration, and the child carrier 10 is folded for storage.

[0018] Referring to Figures 1, 4, and 5, the flexible seat assembly 200 comprises a flexible seat 201 having a seat back 202 and a seat pan 204. The seat back 202 is configured to support the back of a child when the child is seated in the flexible seat assembly 200. The seat pan 204 is configured to support the lower part of a child when the child is seated in the flexible seat assembly 200. The seat pan 204 extends forward from the seat back 202. The rear end of the seat pan 204 is attached to the seat back 202 at the seat curve 204a. The flexible seat assembly 200 comprises a pair of side walls 206(1), 206(2). The side walls 206(1), 206(2) are spaced apart from each other along the lateral direction A to define a seating space for accommodating a child between them. Each side wall 206(1) and 206(2) extends forward from the seat back 202. Each side wall 206(1) and 206(2) extends upward from the seat pan 204. The flexible seat assembly 200 is equipped with a leg pad 208. The leg pad 208 extends downward from the seat pan 204. The front end 204b of the seat pan 204 is attached to the leg pad 208.

[0019] The child carrier 10 includes a safety belt 400 attached to a flexible seat assembly 200 for securing a child in the carrier 10. The safety belt 400 is a multi-point safety belt, such as a three-point or five-point safety belt. The safety belt 400 includes a crotch strap 406 having a crotch buckle 401. The safety belt 400 includes a first strap 402 and a second strap 404 configured to selectively fasten to the crotch buckle 401. The first strap 402 includes a knee belt portion configured to be positioned over the child's knee and / or a shoulder belt portion configured to be positioned over the child's shoulder. Similarly, the second strap 404 includes a knee belt portion configured to be positioned over the child's knee and / or a shoulder belt portion configured to be positioned over the child's shoulder. In an alternative example, the shoulder belt portion may be defined by a third strap and a fourth strap, rather than being formed as part of the first strap 402 and the second strap 404.

[0020] Now, looking more specifically at Figures 2, 3, and 24, the transport vehicle frames 100, 100' of the present disclosure have a front end 100a and a rear end 100b spaced apart from each other along a longitudinal direction L perpendicular to the lateral direction A. The transport vehicle frames 100, 100' have a first side 100c and a second side 100d spaced apart from each other along the lateral direction A. The transport vehicle frames 100, 100' have an upper end 100e and a lower end 100f spaced apart from each other along a vertical direction V perpendicular to the longitudinal direction L and the lateral direction A.

[0021] The transport cart frames 100, 100' include a lower frame portion 102 and a handle 104 extending upward from the lower frame portion 102. The child transport cart frames 100, 100' include a plurality of wheels 112 attached to the lower end of the lower frame portion 102. The lower frame portion 102 includes a plurality of legs 106. Each of the legs 106 may have a tubular shape and is formed from a rigid material such as metal. The legs 106 include a pair of front legs 108(1), 108(2) and a pair of rear legs 110(1), 110(2). The rear legs 110(1), 110(2) are spaced apart from each other along the lateral direction A. The transport vehicle frame 100 includes a cross brace 103 that extends from the first rear leg 110(1) to the second rear leg 110(2), so as to separate the rear legs 110(1) and 110(2) from each other. The cross brace 103 is positioned adjacent to or above the lower ends of the rear legs 110(1) and 110(2). The lower ends of the rear legs 110(1) and 110(2) are spaced apart from the lower ends of the front legs 108(1) and 108(2) along the longitudinal direction L. Multiple wheels 112 are attached to the lower ends of multiple legs 106.

[0022] Figures 2, 3, and 24 show an example in which a transporter frame 100, 100' comprises a pair of front legs 108(1), 108(2) and a pair of rear legs 110(1), 110(2), with each leg 106 having a wheel 112 attached to its lower end. The transporter frame 100, 100' includes a cross brace 105 (indicated in Figures 4 and 26) extending from the first of the front legs 108(1) to the second of the front legs 108(2), so as to separate the front legs 108(1), 108(2) from each other. The cross brace 105 is positioned adjacent to or above the lower ends of the front legs 108(1), 108(2).

[0023] In one example, the front legs 108(1) and 108(2) are rotatably connected to the rear legs 110(1) and 110(2), respectively. For example, the transport vehicle frames 100 and 100' include a first joint 114(1) that pivotably connects a first rear leg 110(1) to the front legs 108(1) and 108(2), and a second joint 114(2) that pivotably connects a second rear leg 110(2) to the front legs 108(1) and 108(2). The first joint 114(1) and the second joint 114(2) are spaced apart from each other along the lateral direction A so as to at least partially define a space between them configured to accommodate a child seat such as a flexible seat assembly 200 or a child seat 500. Each of the connecting parts 114(1) and 114(2) is connected to a pivot axis A that extends along the lateral direction A. P The following is determined: Each of the front legs 108(1), 108(2) is pivoted on a pivot axis A such that the lower ends of the front legs 108(1), 108(2) and the rear legs 110(1), 110(2) move toward each other along the longitudinal direction L toward a folding configuration, and move toward each other along the longitudinal direction L toward one of the seating configurations. P It is configured to pivot relative to the corresponding rear leg sections 110(1) and 110(2).

[0024] The handle 104 comprises a first handle portion 104a and a second handle portion 104b spaced apart from each other along the lateral direction A, so as to define at least partially a receiving space between them. Each of the first handle portion 104a and the second handle portion 104b may have a tubular shape and be formed from a rigid material such as metal. The first handle portion 104a extends upward from the first joint 114(1), and the second handle portion 104b extends upward from the second joint 114(2). Each of the first handle portion 104a and the second handle portion 104b extends backward as it extends upward from one of the first joint 114(1) and the second joint 114(2), respectively. The first handle portion 104a is pivotably connected to the first joint 114(1), and the second handle portion 104b is pivotably connected to the second joint 114(2). Thus, the handle 104 is configured to rotate relative to one or both of the front legs 108(1), 108(2) and the pair of rear legs 110(1), 110(2) to transition the child carrier 10 between a seated configuration and a folded configuration. In one example, the handle 104 is configured to rotate toward the rear legs 110(1), 110(2).

[0025] The handle 104 includes a third handle portion 104c which defines a gripping surface configured to be grasped by a caregiver to push the child transport cart 10. The third handle portion 104c extends between the first handle portion 104a and the second handle portion 104b, such as from the first handle portion 104a to the second handle portion 104b. The third handle portion 104c may have a tubular shape and be formed from a rigid material such as metal. In one example, the handle 104 may include a gripping surface, such as a rubber or foam surface, applied to the third handle portion 104c for grasping by a caregiver.

[0026] In one example, the child carrier 10 includes caregiver forms 600, 600' attached to the handle 104. The caregiver forms 600, 600' are attached to the first handle portion 104a and the second handle portion 104b. The caregiver forms 600, 600' are positioned adjacent to the third handle portion 104c so that they are easily accessible to the caregiver when the caregiver pushes or pulls the child carrier 10 by the third handle portion 104c. The caregiver forms 600, 600' extend to the upper end and define recesses 602, such as a plurality of recesses, configured to hold objects such as beverage containers, food containers, or mobile phones (without limitation).

[0027] Continuing to refer to Figures 2, 3, and 24, in one example, the transporter frame 100, 100' comprises a first front leg 108(1) or a second front leg 108(2) and a footrest 116 extending between the first front leg 108(1) and the second front leg 108(2). The footrest 116 is configured to support the child's feet when the child is seated in the flexible seat assembly 200. The transporter frame 100, 100' also comprises a leg panel 118. The leg panel 118 is positioned behind the child's legs when the child is seated in the flexible seat assembly 200. The leg panel 118 extends between the first front leg 108(1) and the second front leg 108(2). The leg panel 118 extends upward from the footrest 116 between the first front leg 108(1) and the second front leg 108(2) so as to be aligned with the first front leg 108(1) and the second front leg 108(2). The leg panel 118 may have an upper end 118a and a lower end 118b. The lower end 118b is positioned adjacent to the footrest 116. The transporter frames 100, 100' define a front support edge 119 configured to support the front end of the seat pan 204 (indicated in Figure 1) of the flexible material seat assembly 200. In one example, the front support edge 119 is defined by the upper end 118a of the leg panel 118.

[0028] The transport vehicle frames 100, 100' include a cross brace 117 (referenced in Figure 4) that extends between the first front leg portion 108(1) and the second front leg portion 108(2) at its upper end 118a and supports the upper end 118a. The upper end 118a of the leg panel 118 is attached to the upper cross brace 117. Thus, the upper cross brace 117 can provide structural support to the upper end 118a of the leg panel 118. In one example, the rear side of the leg panel 118 may have a plurality of fin-shaped reinforcing members 118c (referenced in Figures 4 and 26) that extend from the leg panel 118 to provide structural support and rigidity to the leg panel 118.

[0029] The transport vehicle frames 100 and 100' are each provided with a pair of folding hubs 132(1) and 132(2) (shown in detail in Figure 22), each defined at one of the connecting parts 114(1) and 114(2). The front legs 108(1) and 108(2), the pair of rear legs 110(1) and 110(2), and the handle 104 are pivotally connected to each other at the pair of folding hubs 132(1) and 132(2). The folding hubs 132(1) and 132(2) are configured to rotate relative to each other between the seated configuration and the folded configuration. For example, the front legs 108(1), 108(2) and the rear legs 110(1), 110(2) are configured to rotate toward each other in a folded configuration. Furthermore, the handle 104 and the rear legs 110(1), 110(2) are configured to rotate toward each other in a folded configuration. In the folded configuration, the rear legs 110(1), 110(2) are positioned between the handle 104 and the front legs 108(1), 108(2). One or both of the folding hubs 132(1), 132(2) may have a folding locking mechanism that is configured to releasably lock the child carrier 10 in a seated configuration.

[0030] The transport vehicle 10 includes an armrest 134 for a child, pivotably connected to the transport vehicle frame 100, 100' in a pair of folding hubs 132(1), 132(2). The armrest 134 is configured to support items such as beverage containers, and may define a tray as shown or an arm bar. The armrest 134 extends along the lateral direction A from the first folding hub 132(1) to the second folding hub 132(2). The armrest 134 extends across the child's knees when the child is seated in the flexible seat 201. The armrest 134 is configured to rotate between a folded position and an extended position. For example, the armrest 134 is configured to rotate to the folded position relative to the handle 104 and the front legs 108(1) and 108(2) when the transport frame 100, 100' is moved to the folded configuration so that the armrest 134 is positioned in contact with the front legs 108(1) and 108(2). Furthermore, the armrest 134 remains in the folded position when the transport frame 100, 100' is moved from the folded configuration to the seated configuration, and is configured such that a caregiver must be involved in rotating the armrest 134 upward to the extended position.

[0031] Referring to Figure 22, an example of a folding hub 132 used to implement one or both of the folding hubs 132(1) and 132(2) is shown. Generally, the folding hub 132 has a front leg plate 136, a rear leg plate 138, and a handle plate 140 that are pivotally connected to each other. The front leg plate 136 is positionally fixed to the front legs 108(1) and 108(2) such that the rotation of the front legs 108(1) and 108(2) causes a corresponding rotation of the front leg plate 136. The rear leg plate 138 is positionally fixed to the rear legs 110(1) and 110(2) such that the rotation of the rear legs 110(1) and 110(2) causes a corresponding rotation of the rear leg plate 138. The handle plate 140 is fixed in position to the handle 104 such that the rotation of the handle 104 causes a corresponding rotation of the handle plate 140. The front leg plate 136, the rear leg plate 138, and the handle plate 140 are pivoted on axis A P They are arranged in a line along the same path.

[0032] The folding hub 132 may have a folding locking mechanism 142 configured to releasably lock the child carrier 10 in a seated configuration. The folding locking mechanism 142 is configured to move between a locking position that prevents the carrier frame 100, 100' from being folded and a locking release position that allows the carrier frame 100, 100' to be folded. The folding locking mechanism 142 is configured to be rotatably fixed to one of the front leg plates 136, rear leg plates 138, and handle plates 140, and to releasably engage with the other two of the front leg plates 136, rear leg plates 138, and handle plates 140 to rotatably lock the front legs 108(1), 108(2), rear legs 110(1), 110(2), and handle 104 relative to each other.

[0033] For example, Figure 22 shows one particular example in which the folding locking portion 142 is configured to be fixed in rotation with respect to the rear legs 110(1), 110(2) and to engage releasably with the front leg plate 136 and the handle plate 140. The folding locking portion 142 is translationally movable with respect to the rear legs 110(1), 110(2) along their axes. The folding locking portion 142 includes projections 142a configured to be received in recesses 136a in the front leg plate 136 and recesses 140a in the handle plate 140 when the transporter frames 100, 100' are in the seated position so as to lock the front legs 108(1), 108(2), the rear legs 110(1), 110(2), and the handle 104 in rotation with respect to each other. The projection 142a is translated out of the recesses 136a and 140a so as to disengage the front legs 108(1), 108(2), rear legs 110(1), 110(2), and handle 104 from each other, thereby allowing the transport vehicle frames 100, 100' to be moved into a folded configuration. The projection 142a is biased toward a locking position configured so as to be received in the recesses 136a and 140a. For example, referring to Figures 22 and 23, the projection 142a is biased by a spring or elastic member 143. The projection 142a is moved toward a locking release position so as to be removed from the recesses 136a and 140a. In some embodiments, the projection 142a can be removed from the recesses 136a and 140a by a cable (not shown). The cable can be connected at one end to a folding retaining section 142 and at the other end to be accessible to a caregiver. The cable can be wound around a pulley (not shown) which is at least partially located on the rear leg sections 110(1), 110(2). When the caregiver applies a force to the cable that is greater than the biasing force provided by the elastic member 143, the projection 142a can be removed from the recesses 136a and 140a.

[0034] Referring to Figures 22 and 23, the transporter frame 100, 100' includes an armrest hub 144 that connects the armrest 134 to a folding hub 142. The armrest hub 144 includes an armrest connector 144a that removably connects to the armrest 134 so that the armrest 134 is fixed to the armrest hub 144 in rotation. In one example, the armrest connector 144a is the other of a T-shaped track and recess that engages with one of the T-shaped track and recess of the armrest 134. However, in alternative examples, it is understood that the armrest connector 144a is any suitable connector. Alternatively, the armrest hub 144 is fixedly attached to the armrest 134. The transporter frame 100 includes an armrest retainer 146 configured to removably lock the armrest 134 in an unfolded configuration. The armrest retainer 146 is fixed to the armrest hub 144 in rotation. The armrest retaining portion 146 is configured to translate relative to the armrest hub 144 between an engaged position (Figure 23A) and an unengaged position (Figure 23B). In the engaged position, the armrest retaining portion 146 is configured to engage with the projection 142a of the folding retaining portion 142 to prevent the armrest 134 from moving from the extended position to the folded position. The transport vehicle frame 100 includes a spring or elastic member 148 that biases the projection 142a toward the engaged position. In the unengaged position, the armrest retaining portion 146 is configured to disengage from the projection 142a of the folding retaining portion 142 to rotate the armrest 134 from the extended position (Figure 23B) to the folded position (Figure 23C).

[0035] The armrest retaining portion 146 has an engaging surface 146a configured to engage with a projection 142a in an engaging position to prevent the armrest 134 from rotating to the folded position. The projection 142a is disengaged from the engaging surface 146a of the armrest retaining portion 146 when the folding retaining portion 142 is moved from the retaining position to the release position. The armrest retaining portion 146 may have an inclined surface 146b configured to engage with the projection 142a when the armrest 134 is moved from the folded position to the unfolded position. The inclined surface 146b can ride along the projection 142a so as to translate the armrest retaining portion 146 to the release position (Figures 23D and 23E), and the armrest retaining portion 146 can move elastically so as to return to the engaged position after the projection 142a has passed the inclined surface 146b (Figure 23F). The transport vehicle frames 100, 100' are equipped with a stopper 150 that is fixed to the armrest hub 144 in rotation. The stopper 150 is configured to restrict the rotation of the armrest 134 when the armrest 134 is rotated to the extended position. The stopper 150 can engage with a projection 142a to restrict the rotation of the armrest 134 beyond the extended position.

[0036] Looking at Figures 35 to 38, the transport cart frames 100, 100' include a folding actuator 160 configured to involve a caregiver in moving each folding locking section 142 (indicated in Figure 22) between a locking position that prevents the transport cart 10 from being folded and a locking release position that allows the transport cart 10 to be folded. The actuator 160 includes a first strap 162, such as a belt, operably connected to each of the folding locking sections 142, such that movement of the first strap 162 along the operating direction moves the folding locking section 142 to the locking release position. The operating direction is upward, for example, and the movement may include, for example, pulling the first strap 162 upward. The first strap 162 extends between the first side 100c and the second side 100d of the transport cart frames 100, 100'.

[0037] The actuator 160 is configured to convert the movement of the first strap 162 along the operating direction into the movement of the folding retaining portion 142 (indicated in Figure 22) to the release position. For example, in Figures 22 and 23, the folding retaining portion 142 moves downward to the release position. In one example, the actuator 160 controls each folding retaining portion 142 along the pivot axis A A The system comprises a pivot body 164 configured to pivot around a pivot axis A, and a link mechanism 166. Note that Figures 37 and 38 show one of the pivot bodies 164 and one of the link mechanisms 166, and that the other pivot bodies 164 and link mechanisms 166 are mirror images of those shown. Each pivot body 164 may have a first end 164a attached to the first strap 162 and a second end 164a connected to the corresponding link mechanism 166. Each pivot body 164 moves the corresponding link mechanism 166 along the pivot axis A in a direction that causes the folding retaining portion 142 to move between a retaining position and a release position. A It is configured to pivot around the pivot. Each link mechanism 166 is a cable, band, rod, or other suitable link mechanism. One end of each link mechanism 166 is attached to the folding retaining part 142. The actuator 160 may optionally include a pulley 168 for each pivot 164, configured to guide the movement of the first strap 162 when the first strap 162 is moved along the operating direction.

[0038] The transport cart frames 100, 100' include a crossbar 170 extending from a first rear leg 110(1) to a second rear leg 110(2) between the first side 100c and the second side 100d of the transport cart frames 100, 100'. The crossbar 170 is configured to protect at least a portion of the first strap 162 from accidental engagements, such as engagements that may occur when a caregiver places objects in the basket 400. For example, the portion of the first strap 162 to be protected is positioned below or inside the crossbar 170. In one example, the crossbar 170 includes a recess 170a. At least a portion of the first strap 162 is positioned in the recess 170a, and at least a portion of the first strap 162 is exposed outside the recess 170a. In one example, the first and second ends of the first strap 162 are positioned in the recess 170a, and the central portion of the first strap 162 extends outward from the recess 170a so that it is accessible to the caregiver.

[0039] A portion of the first strap 162, such as the central portion of the first strap 162, is configured to be accessible to a caregiver when the flexible seat 201 is detached from the transport frame 100, 100'. In one example (not shown), a portion of the first strap 162, such as the central portion of the first strap 162, is configured to be accessible to a caregiver from above the seat pan 204 or the seat curve 204a. For example, the portion may extend along the seat pan 204 or the seat curve 204a. In another example, the flexible seat assembly 200 includes a second strap 172, and the child transport 10 includes a connector 174, such as a clip, configured to detachably connect the first strap 162 and the second strap 172 to each other. At least a portion of the second strap 172 is accessible to a caregiver from above the seat pan 204 or the seat curve 204a. For example, a portion of it may extend along the sheet pan 204 or the sheet curve 204a, as shown in Figure 35. At least a portion of the second strap 172 is positioned below the sheet pan 204 or the sheet curve 204a so as to be detachably connected to the first strap 162 by a coupler 174 (shown in Figure 36). The transport cart 10 is folded using one hand by gripping the transport cart 10 with either the first strap 162 (e.g., when the seating flexibility 201 is removed) or the second strap 172 (e.g., when the seating flexibility 201 is installed) and pulling the transport cart 10 upward by the first strap 162 or the second strap 172. When the first strap 162 or the second strap 172 is pulled upward, the actuator 160 moves each folding locking part 142 from the locking position to the unlocked position so that the handle 104 and the front legs 108(1), 108(2) rotate toward the pair of rear legs 110(1), 110(2) toward the folding configuration via gravity.

[0040] The second strap 172 is secured to the flexible seat 201 so that it can be removed along the flexible seat 201 from the transport frame 100, 100' when the flexible seat assembly 200 is removed from the transport frame 100, 100'. The first strap 162 is configured not to be removed from the transport frame 100, 100' when the flexible seat assembly 200 is removed from the transport frame 100, 100'. In other words, the first strap 162 is configured to stay with the transport frame 100, 100' when the flexible seat assembly 200 is removed from the transport frame 100, 100'.

[0041] Figure 39 shows an example of a coupler 174. The coupler 174 may have an opening configured to receive a first strap 162 and a second strap 172. For example, the coupler 174 may have a first hole 174a configured to receive one of the first strap 162 and the second strap 172. The coupler 174 may have a second hole 174b configured to receive the other of the first strap 162 and the second strap 172. The second hole 174b defines an opening 174c on the outer surface of the coupler 174 so that the first strap 162 and the other of the second strap 172 can move in and out of the second hole 174b through the opening 174c.

[0042] Referring to Figures 1, 2, and 24, the flexible seat assembly 200 is configured to be directly and detachably attached to the transporter frames 100, 100' without being attached to a separate seat frame that is attached to the transporter frames 100, 100'. In fact, the child transporter 10 does not have a seat frame that is attached (detachably or permanently) to the transporter frames 100, 100'. The transporter frames 100, 100' may not optionally have a rigid seat support surface or seat support tube extending beneath the seat pan 204 of the flexible seat assembly 200 to support the seat pan 204. Rather, the seat pan 204 is attached to the transporter frames 100, 100' at the front end 204b and the seat curve 204a so as to be suspended between the front end 204b and the seat curve 204a, and between the first and second front legs 106. It should be noted that the flexible seat assembly 200 is provided with reinforcing members on each of the seat pan 204 and / or seat back 202, and that removal of the flexible seat assembly 200 results in the removal of the reinforcing members. Each reinforcing member is positioned on or attached to the fiber layer of the flexible seat assembly 200. The seat back 202 may optionally be attached to the transport cart frame 100, 100' along the handle 104, such as along the first handle portion 104a and the second handle portion 104b. As will be described in more detail later, the child transport cart 10 is provided with a number of couplings configured to removably connect the flexible seat assembly 200 to the transport cart frame 100, 100'. In at least some examples, the flexible seat assembly 200 is removed from the transport cart frame 100, 100' without the use of tools.

[0043] Here, a first example of how the flexible seat assembly 200 is detachably connected to the transport vehicle 100 is described with reference to Figures 2 to 21. As shown in Figure 5, the flexible seat assembly 200 comprises a first leg coupler 210(1) and a second leg coupler 210(2) fixedly attached to the flexible seat 201. Each leg coupler 210(1), 210(2) is configured to detachably connect the seat curved portion 204a of the flexible seat assembly 200 to the legs of the transport vehicle frame 100. The leg couplers 210 are fixedly attached to the flexible seat 201 adjacent to the seat curved portion 204a. The leg couplers 210 are spaced apart from each other along the lateral direction A. For example, the first leg coupler 210(1) and the second leg coupler 210(2) are positioned on the first side 201a and the second side 201b of the flexible material seat 201.

[0044] In one example, the flexible seat assembly 200 includes support straps 212(1), 212(2) attached to the flexible seat 201 adjacent to the seat curve 204a. Each support strap 212(1), 212(2) is, for example, a fabric, a belt, a rope, or a cord. The support straps 212(1), 212(2) extend from a first side 201a of the flexible seat 201 to a second side 201b of the flexible seat 201. The first side 201a and the second side 201b are spaced apart from each other along the lateral direction A. The support straps 212(1), 212(2) are attached to the flexible seat 201 by any suitable technique, such as sewing the straps or passing the straps through a tunnel of fibers in the flexible seat 201. The support straps 212(1) and 212(2) are attached to the flexible material seat 201 when they extend along the flexible material seat 201 between the first side 201a and the second side 201b. For example, the flexible material seat 201 may have a width from the first side 201a to the second side 201b, and the support straps 212(1) and 212(2) are attached to the flexible material seat 201 along at least 50% of the width, or along the same length as the entire width.

[0045] Each support strap 212(1), 212(2) extends along the lateral direction A. Each support strap 212(1), 212(2) may have a length along the lateral direction A that is greater than the width of the flexible seat 201 along the lateral direction A. Thus, each support strap 212(1), 212(2) extends beyond the first side 201a and the second side 201b of the flexible seat 201. Each support strap 212(1), 212(2) is attached to the first leg coupler 210(1) and the second leg coupler 210(2). For example, each support strap 212(1), 212(2) is fixedly attached to the first leg coupler 210(1) and the second leg coupler 210(2) by rivets, screws, or other suitable fasteners. Each support strap 212(1), 212(2) may have a fixed length between the first leg connector 210(1) and the second leg connector 210(2). The fixed length is selected so that a desired tension is applied to each support strap 212(1), 212(2) when the first leg connector 210(1) and the second leg connector 210(2) are connected to the transport frame 100, without the caregiver needing to adjust the tension applied to each support strap 212(1), 212(2). In fact, the length of each support strap 212(1), 212(2) is fixed so that the tension applied to each support strap 212(1), 212(2) cannot be adjusted. By fixing the length of each support strap 212(1) and 212(2), it is possible to ensure that the flexible seat portion 201 is easily and securely installed without the caregiver having to worry about failing to properly pull each support strap 212(1) and 212(2).

[0046] Figure 5 shows an example in which the flexible seat assembly 200 comprises a first support strap 212(1) and a second support strap 212(2). The first support strap 212(1) is attached to the flexible seat 201 below the seat pan 204, adjacent to the seat curve 204a. The first support strap 212(1) is configured to provide structural support to the flexible seat 201 below the seat pan 204. Thus, the first support strap 212(1) is configured to provide structural support to resist movement of the seat pan 204 along the vertical direction V. The second support strap 212(2) is attached to the flexible seat 201 along the seat back 202, adjacent to the seat curve 204a. The second support strap 212(2) is configured to provide structural support to the flexible seat 201 behind the seat back 202. Therefore, the second support strap 212(2) is configured to provide structural support to resist movement of the seat back 202 along the longitudinal direction L.

[0047] Referring to Figures 6 and 7, the leg couplers 210(1) and 210(2) are configured to be detachably connected to the transporter frame 100. For example, each leg coupler 210(1) and 210(2) is configured to be detachably connected to the corresponding rear legs 110(1) and 110(2) of the transporter frame 100. The transporter frame 100 includes a first leg coupler 120(1) and a second leg coupler 120(2) (coupler 120(2) is indicated in Figure 3) which are configured to be connected to the first leg coupler 210(1) and the second leg coupler 210(2) of the flexible material seat assembly 200, respectively. The leg couplers 120(1), 120(2), 210(1), and 210(2) are any suitable couplers. The leg connectors 120(1) and 120(2) of the transport vehicle frame 100 are securely attached to the transport vehicle frame 100 so as to be fixed in position relative to the transport vehicle frame 100. Therefore, movement of the transport vehicle frame 100 can result in corresponding movement of the leg connectors 210(1) and 210(2). Similarly, the leg connectors 210(1) and 210(2) of the flexible seat assembly 200 are configured to be securely attached to the transport vehicle frame 100 so as to be fixed in position relative to the transport vehicle frame 100. For example, the leg connectors 210(1) and 210(2) of the flexible seat assembly 200 are configured to be securely attached to the leg connectors 120(1) and 120(2) of the transport vehicle frame 100 so as to be fixed in position relative to the transport vehicle frame 100. Therefore, movement of the transport vehicle frame 100 results in corresponding movement of the leg connectors 210(1) and 210(2). The leg couplers 120(1) and 120(2) are preferably configured to be detachable by the user from the leg couplers 210(1) and 210(2), and consequently from the transport vehicle frame 100, without the use of a removal tool. However, in alternative examples, removal may require the use of a tool.

[0048] Figures 6 and 7 show one specific example of couplers 120 and 210 that may be used to implement leg couplers 120(1), 120(2), 210(1), and 210(2), but it will be understood that suitable alternative couplers may be used. In this example, leg coupler 120 is positioned in the selected direction D to define a space 126 between which is configured to receive one of the corresponding leg couplers 210 of the flexible body seat assembly 200. S It has a first portion 122 and a second portion 124 that are spaced apart from each other along the direction D. In one example, the selected direction D S These are aligned with the corresponding axle of the rear leg sections 110(1) and 110(2). The first section 122 and the second section 124 are formed from a polymer such as plastic or other suitable rigid material. The first section 122 and the second section 124 are fixed to the transport frame 100. For example, one or both of the first section 122 and the second section 124 are attached to the transport frame 100 by rivets, screws or other suitable fasteners. In one example, the first section 122 and the second section 124 are mounted inside the transport frame 100.

[0049] Generally, the first portion 122 may have one of a projection and an opening (described later with reference to Figures 6 to 10), and the corresponding leg coupler 210 may have the other of a projection and an opening configured to engage with the one of the projection and an opening of the first portion 122 in order to connect the first portion 122 and the corresponding leg coupler 210 to each other. Similarly, the second portion 124 may have one of a projection and an opening, and the corresponding leg coupler 210 may have the other of a projection and an opening configured to engage with the one of the projection and an opening of the second portion 124 in order to connect the second portion 124 and the corresponding leg coupler 210 to each other. At least one of the projections is configured to move while the corresponding leg coupler 210 of the flexible seat assembly 200 is engaged with the corresponding leg coupler 120 of the transport frame 100, and to extend to the corresponding opening to lock the leg coupler 210 of the flexible seat assembly 200 to the leg coupler 120 of the transport frame 100. In one example, one of the protrusions is fixed, and the other is movable (for example, flexible or retractable). In such an example, the leg coupler 210 of the flexible seat assembly 200 engages with the corresponding leg coupler 120 of the transporter frame 100 by engaging the fixed protrusion with the corresponding opening, rotating the leg coupler 210 to align the movable protrusion with the corresponding opening, and releasing the movable protrusion to accept the movable protrusion into the corresponding opening.

[0050] In the examples shown in Figures 6 to 10, the first part 122 and the second part 124 define openings 122a and 124a, respectively. The openings 122a and 124a face each other. The leg connector 210 of the flexible seat assembly 200 includes a rigid projection 210a and a movable projection 210b. The rigid projection 210a extends from the lower end of the leg connector 210, but may alternatively extend from the upper end of the leg connector 210. The movable projection 210b extends from the upper end of the leg connector 210, but may alternatively extend from the lower end of the leg connector 210. The movable projection 210b is movable relative to the rigid projection 210a.

[0051] Referring now to FIGS. 11 to 13, the leg connector 210 includes a housing 214 and a shuttle 216 disposed in the housing 214. The shuttle 216 can carry a movable projection 210b. The shuttle 216 is configured to at least partially retract the movable projection 210b into the housing 214 and to extend the movable projection 210b out of the housing 214 in a selected direction D S (see FIG. 9) and is translatable relative to the housing 214 along the direction. The housing 214 can carry a rigid projection 210b. In one example, the housing 214 includes a first housing portion 214a and a second housing portion 214b. One or both of the first housing portion 214a and the second housing portion 214b define a recess 214c configured to receive the shuttle 216 therein. The other of the first housing portion 214a and the second housing portion 214b can surround the recess 214c to capture the shuttle 216 between the first housing portion 214a and the second housing portion 214b. In one example, the first housing portion 214a defines the recess 214c and can carry a rigid projection 210a. The leg connector 210 includes a biasing member 218, such as a spring or a flexible member, configured to bias the shuttle 216 in the selected direction D S toward an extended position. The leg connector 210 includes an operating surface 216a configured to involve a user to move the shuttle 216 toward a retracted position and, by extension, to move the movable projection 210b. The housing 214 defines an opening 214d therein, and the operating surface 216a can project outside the opening 214d so as to be accessible by a user. As shown in FIG. 7, the straps 212(1), 212(2) are attached to the housing 214 of the leg connector 210.

[0052] Referring to Figures 4 and 5, the flexible seat assembly 200 includes a leg pad connector 220 configured to connect the leg pads 208 of the flexible seat 201 to the leg panel 118. The child carrier 10 is configured such that when the leg connectors 210(1), 210(2) are connected to the carrier frame 100 and the leg pads 208 are connected to the leg panel 118, the seat pan 204 of the flexible seat 201 is positioned so as to be sufficiently stretched to support the weight of a child sitting on the seat pan 204. While the leg connectors 210(1), 210(2) are connected to the carrier frame 100 and the leg pads 208 are connected to the leg panel 118, the flexible seat 201 is stretched over the front support edge 119 of the carrier frame 100, thereby pulling the seat pan 204 which is suspended between the front support edge 119 and the seat curve 204a.

[0053] Referring here to Figures 4, 5, and 26, the leg pad connector 220 is any suitable connector that can withstand the pull applied to the leg pad connector 220 when a child is seated on the seat pan 204. In one example, the leg panel 118 comprises an opening 118e through it and a leg panel connector 118d located inside the leg panel 118. The leg pad connector 220 comprises a strap extending through the opening 118e of the leg panel 118 and configured to connect to the leg panel connector 118d inside the leg panel 118. In one example, the leg panel connector 118d comprises a snap-fastening post or socket, and the strap of the leg pad connector 220 comprises the other of a snap-fastening post and socket. However, it is understood that the leg pad connector 220 and the leg panel connector 118d are any suitable connectors.

[0054] Regarding the mounting of the flexible object seat assembly 200, the flexible object seat assembly 200 includes a first upper handle connector 222(1) and a second upper handle connector 222(2) (both of which are referenced in Figure 3). The second upper handle connector 222(2) is essentially a mirror image of the first upper handle connector 222(1). The first upper handle connector 222(1) is positioned on the first side wall 206(1) of the flexible object seat 201, and the second upper handle connector 222(2) is positioned on the second side wall 206(2) of the flexible object seat 201. The first upper handle connector 222(1) is configured to attach the first side wall 206(1) of the flexible material seat 201 to the first handle portion 104a, and the second upper handle connector 222(2) is configured to attach the second side wall 206(2) of the flexible material seat 201 to the second handle portion 104b.

[0055] Figures 3 and 14-17 show that the first handle portion 104a and the second handle portion 104b may each be provided with upper handle couplers 128(1) and 128(2), respectively, configured to engage with the corresponding upper handle couplers 222(1) and 222(2) of the flexible object seat assembly 200. The upper handle couplers 222(1), 222(2), 128(1), and 128(2) may be any suitable couplers that can attach the first side wall 206(1) and the second side wall 206(2) to the first handle portion 104a and the second handle portion 104b, respectively. For example, each of the upper handle couplers 222(1), 222(2) may have one of a projection and one of an opening, and the handle 104 has the other of a projection and an opening configured to engage with the other of the projection and an opening in order to connect the upper handle couplers 222(1), 222(2) to the handle 104. The upper handle couplers 128(1), 128(2) are securely attached to the transport vehicle frame 100 such that movement of the handle 104 results in corresponding movement of the upper handle couplers 128(1), 128(2). Furthermore, the upper handle couplers 222(1), 222(2) are configured to be securely attached to the upper handle couplers 128(1), 128(2) such that movement of the handle 104 results in corresponding movement of the upper handle couplers 222(1), 222(2).

[0056] Figures 1, 3, and 14-17 show one specific example of upper handle couplers 128 and 222 used to implement upper handle couplers 128(1), 128(2), 222(1), and 222(2). The upper handle coupler 222 is formed from a polymer such as plastic or other suitable rigid material. The upper handle coupler 222 is attached to one of the first side wall 206(1) and the second side wall 206(2) of the flexible material seat 201. For example, the coupler 222 is attached to the side wall 206(1), 206(2) by sewing, riveting, or other suitable fasteners. In some examples, the coupler 222 may comprise a main body 222a and a tab 222b extending from the main body 222a, the tab 222b having a thickness less than the thickness of the main body 222a so as to be sewn to the side walls 206(1), 206(2). In some examples, each of the side walls 206(1), 206(2) is in itself a selected direction D S1 A strap 224 extending along the line may be provided, and the coupler 222 is attached to the strap 224. Tab 222b is for selection direction D S1 It comprises first and second tabs 222b extending from opposite ends of the main body 222a along the selected direction D. S1 This is aligned with the axis of the handle 104, such as one axis of the first part 104a and the second part 104b of the handle 104.

[0057] The upper handle connector 128 of the transport vehicle frame 100 includes an enlarged head 128b extending from the neck 128a. The head 128b and the neck 128a extend from one of the first portion 104a and the second portion 104b of the handle 104 along a first direction D1, such as inward. The neck 128a extends from one of the first portion 104a and the second portion 104b of the handle 104 along the first direction D1, and the head 128b extends from the neck 128a along the first direction D1. The head 128b may have a cross-sectional dimension along a second direction D2 that is greater than the cross-sectional dimension of the neck 128a along the second direction D2, which is perpendicular to the first direction D1. In some examples, the head 128b may have a cross-sectional shape that is circular in a plane perpendicular to the first direction D1, but it may have other cross-sectional shapes.

[0058] The upper handle connector 222 defines an opening 222c that penetrates itself and extends along a first direction D1. The opening 222c is divided into a first portion 222d and a first portion 222d that extends along a selected direction D1. S1 The first portion 222d may have a second portion 222e spaced apart along the second direction D2. The first portion 222d may have a cross-sectional dimension along the second direction D2 that is smaller than the cross-sectional dimension of the second portion 222e along the second direction D2. The first portion 222d may have a cross-sectional dimension along the second direction D2 that is smaller than the cross-sectional dimension of the head 128b along the second direction D2, but larger than the cross-sectional dimension of the neck portion 128a along the second direction D2. The second portion 222e may have a cross-sectional dimension along the second direction D2 that is larger than the cross-sectional dimension of the head 128b along the second direction D2. Therefore, the head 128b is configured to be received through the second portion 222e, and the upper handle coupler 222 is positioned in the selected direction D until the neck portion 128a is positioned on the first portion 222d and the upper handle coupler 222 is caught between the head 128b and one of the first portion 104a and the second portion 104b of the handle 104. S1 Along (Selection direction D) S1 It can be translated (downward, etc.) along the same direction.

[0059] Referring to Figures 16-18, in some examples, each upper handle coupler 222(1), 222(2) is provided with a reinforcing opening 222f configured to receive a reinforcing member 226 attached to the upper end of the flexible seat 201, such as at the upper end of the seat back 202 of the flexible seat 201. The reinforcing member 226 is a rod configured to extend from the reinforcing opening 222f of the first upper handle coupler 222(1) to the reinforcing opening 222f of the second upper handle coupler 222(2). The reinforcing member 226 is attached to the flexible seat 201, such as by receiving the reinforcing member 226 in the fiber tunnel of the flexible seat 201. The reinforcing member is flexible and is formed from polymer (e.g., plastic), metal wire, or any suitable flexible material. The reinforcing member 226 may have a first end 226a that is received in the reinforcing member opening 222f of the first upper handle connector 222(1), and a second end 226b that is received in the reinforcing member opening 222f of the second upper handle connector 222(2). At least the central portion 226c of the reinforcing member 226 is received in a recess 604 defined on the underside of the caregiver form 600. In some examples, the reinforcing member 226 is bent such that the central portion 226c of the reinforcing member 226 is positioned above the first end 226a and the second end 226b. Thus, the central portion 226c is biased upward toward the recess 604 so as to hold the central portion 226c in the recess 604.

[0060] The flexible object seat assembly 200 includes a first lower side wall connector 228(1) and a second lower side wall connector 228(2) (both referenced in Figure 2). Note that the second lower handle connector 228(2) is a mirror image of the first lower handle connector 228(1). As can be seen in Figures 19 to 21, the first lower handle connector 228(1) is located on the first side wall 206(1) of the flexible object seat 201, and the second lower handle connector 228(2) is located on the second side wall 206(2) of the flexible object seat 201. The first lower handle connector 228(1) is configured to attach the first side wall 206(1) of the flexible material seat 201 to the first handle portion 104a, and the second lower handle connector 228(2) is configured to attach the second side wall 206(2) of the flexible material seat 201 to the second handle portion 104b. The first lower side wall connector 228(1) is configured to connect to the first handle portion 104a below the first upper handle connector 222(1), and the second lower side wall connector 228(2) is configured to connect to the second handle portion 104b below the second upper handle connector 222(2). The first handle portion 104a and the second handle portion 104b may each include stop portions 130(1) and 130(2) configured to engage with the corresponding lower side wall couplers 228(1) and 228(2) of the flexible seat assembly 200 to prevent the corresponding lower side wall couplers 228(1) and 228(2) from translating the handle 104 upward. The lower side wall couplers 228(1) and 228(2) are any suitable couplers that can attach the first side wall 206(1) and the second side wall 206(2) to the first handle portion 104a and the second handle portion 104b, respectively. For example, each of the lower side wall couplers 228(1) and 228(2) is provided with a clip that clips onto one of the first handle portion 104a and the second handle portion 104b. The lower side wall couplers 228(1) and 228(2) are configured to be securely attached to the first handle portion 104a and the second handle portion 104b such that movement of the handle 104 results in corresponding movement of the lower side wall couplers 228(1) and 228(2).

[0061] Figures 19 to 21 show one specific example of a lower side wall coupler 228(1) and 228(2), and a stopper 130 used to mount the stopper 130(1) and 130(2). The lower side wall coupler 228 is formed from a polymer such as plastic or other suitable rigid material. Similarly, the stopper 130 is formed from a polymer such as plastic or other suitable rigid material. The stopper is firmly fixed to one of the first handle portion 104a and the second handle portion 104b. For example, the stopper 130 is fixed to one of the first handle portion 104a and the second handle portion 104b by rivets, screws or other suitable fasteners.

[0062] The lower side wall coupler 228 may have a body 228c that defines a recess 228a in itself, configured to receive one of the first handle portion 104a and the second handle portion 104b, so as to be attached to one of the first handle portion 104a and the second handle portion 104b. The lower side wall coupler 228 is configured to be attached to one of the first handle portion 104a and the second handle portion 104b below the stop 130 such that the stop 130 creates an obstruction that prevents the lower side wall coupler 228 from translating one of the first handle portion 104a and the second handle portion 104b upward. The lower side wall coupler 228 is attached to one of the first side wall 206(1) and the second side wall 206(2) of the flexible object seat 201. For example, the lower sidewall coupler 228 is attached to the sidewalls 206(1), 206(2) by sewing, rivets, screws, or other suitable fasteners. The lower sidewall coupler 228 is fixedly coupled to one of the first sidewalls 206(1) and the second sidewalls 206(2) such that movement of the lower sidewall coupler 228 results in corresponding movement of one of the sidewalls 206(1), 206(2). The lower side wall coupler 228 is fixedly attached to one of the first side wall 206(1) and the second side wall 206(2) of the flexible object seat 200 such that removal of the lower side wall coupler 228 from the corresponding side of the first handle portion 104a and the second handle portion 104b results in the removal of at least a portion of one of the first side wall 206(1) and the second side wall 206(2) from the corresponding side of the first handle portion 104a and the second handle portion 104b. In some examples, the flexible object seat 201 is positioned in the selected direction D S1 The lower sidewall coupler 228 may be provided with a strap 224 attached to each of the first sidewall 206(1) and the second sidewall 206(2) which extend in themselves along the lower sidewall coupler 228 which is attached to the strap 224. For example, the lower sidewall coupler 228 defines a tunnel 228b, and the strap 224 extends through the tunnel 228b and is attached to the corresponding one of the first sidewall 206(1) and the second sidewall 206(2) on either side of the tunnel 228b.

[0063] In some examples, the lower sidewall coupler 228 includes a coupling 230 that attaches to the arched portion 302 of the canopy 300. In some examples, the coupling 230 can rotate the arched portion 302 of the canopy 300 relative to the body 228c of the lower sidewall coupler 228. The coupling 230 may have a first portion 230a that is fixedly attached to the body 228c of the lower sidewall coupler 228. For example, the first portion 230a of the coupling 230 is integrated with and one piece of the body 228c of the lower sidewall coupler 228. The coupling 230 may have a second portion 230b configured to rotate relative to the first portion 230a. The arched portion 302 is attached to the second portion 230b such that rotation of the second portion 230b results in rotation of the arched portion 302.

[0064] The flexible seat assembly 200 is constructed by (1) attaching one corresponding end of the upper handle connector 222(1) to the corresponding end of the first handle portion 104a and the second handle portion 104b, (2) pulling the side walls 206(1) and 206(2) downward to apply tension to the side walls 206(1) and 206(2), and (3) maintaining tension in the side walls 206(1) and 206(2). The side walls 206(1) and 206(2) are positioned by attaching corresponding ends of the lower side wall connectors 228(1) and 228(2) to corresponding ends of the first handle portion 104a and the second handle portion 104b below corresponding ends of the stop portions 130(1) and 130(2). The tension on the side walls 206(1) and 206(2) can maintain a relationship in which the side walls 206(1) and 206(2) are strongly pulled against one of the first handle portion 104a and the second handle portion 104b. In some examples, the flexible seat assembly 200 is configured such that the respective side walls 206(1) and 206(2) cannot be installed by attaching one corresponding side of the lower side wall connectors 228(1) and 228(2) to the corresponding side of the first handle portion 104a and the second handle portion 104b below the corresponding side of the stop portion 130(1) and 130(2), and then attaching one corresponding side of the upper handle connector 222(1) to the corresponding side of the first handle portion 104a and the second handle portion 104b.

[0065] Each side wall 206(1), 206(2) (e.g., strap 224) may have a length from the stop 130 to the second portion 222e of the opening 222c that is shorter than the length from the stop 130 to the upper handle coupler 128. Thus, when the lower side wall coupler is coupled below the stop 130, the lengths of the side walls 206(1), 206(2) (e.g., strap 224) limit the coupler 222 from being translated upward along the handle portions 104a, 104b to the position where it is uncoupled from the coupler 128.

[0066] Here, a second example of how the flexible seat assembly 200 is detachably connected to the transport vehicle 100' is described in reference to Figures 24 to 38. The flexible seat assembly 200 and the transport vehicle frame 100' are provided with a number of couplers for detachably connecting the flexible seat assembly 200 to the transport vehicle 100'. Similar to Example 1 described above, the flexible seat assembly 200 is provided with a first side wall coupler 228(1) and a second side wall coupler 228(2) (both referenced in Figure 24). Furthermore, the first handle portion 104a and the second handle portion 104b of the transport vehicle 100' may each be provided with stop portions 130(1) and 130(2), respectively, configured to engage with the corresponding side wall couplers 228(1) and 228(2) of the flexible material seat assembly 200 to prevent the corresponding side wall couplers 228(1) and 228(2) from translating the handle 104 upward. The side wall couplers 228(1) and 228(2) and the stop portions 130(1) and 130(2) are implemented as described above.

[0067] Referring to Figures 25 and 26, the transport vehicle 100' includes a leg pad connector 220 configured to connect the leg pads 208 of the flexible seat 201 to the leg panel 118. The child transport vehicle 10 is configured such that when the flexible seat assembly 200 is connected to the transport vehicle frame 100', the seat pan 204 of the flexible seat 201 is stretched sufficiently to support the weight of a child sitting on the seat pan 204. With the leg connectors 210(1), 210(2) connected to the transport vehicle frame 100' and the leg pads 208 connected to the leg panel 118, the flexible seat 201 is stretched across the front support edge 119 of the transport vehicle frame 100', thereby pulling the seat pan 204.

[0068] The leg pad connector 220 is any suitable connector that can withstand the pull applied to the leg pad connector 220 when a child is seated on the seat pan 204. In one example, the leg panel 118 comprises an opening 118e through it and a leg panel connector 118d located inside the leg panel 118. The leg pad connector 220 comprises a strap extending through the opening 118e of the leg panel 118 and configured to connect to the leg panel connector 118d inside the leg panel 118. In one example, the leg panel connector 118d comprises a snap-fastening post or socket, and the strap of the leg pad connector 220 comprises the other of a snap-fastening post and socket. However, it is understood that the leg pad connector 220 and the leg panel connector 118d are any suitable connectors.

[0069] As shown in Figure 30, the flexible seat assembly 200 includes a pair of leg connectors 240(1) that are fixedly attached to the flexible seat 201. Each leg connector 240(1) is configured to detachably connect the sides 201a and 201b of the flexible seat 201 to the legs of the transport vehicle frame 100'. For example, a pair of leg connectors 240(1) is configured to detachably connect the first side 201a and the second side 201b of the flexible seat 201 to the first front leg 108(1) and the second front leg 108(2), respectively. The leg connectors 240(1) are fixedly attached to the flexible seat 201. The leg connectors 240(1) are spaced apart from each other along the lateral direction A. For example, the leg connector 240(1) is positioned on the first side 201a and the second side 201b of the flexible seat portion 201.

[0070] In some examples, the flexible seat assembly 200 includes a support strap 242 attached to the flexible seat 201 along the seat pan 204 and / or seat back 202. The support strap 242 is, for example, a fabric, a belt, a rope, or a cord. The support strap 242 extends from a first side 201a of the flexible seat 201 to a second side 201b of the flexible seat 201. The first side 201a and the second side 201b are spaced apart from each other along the lateral direction A. The support strap 242 is attached to the flexible seat 201 by any suitable technique, such as sewing the strap or passing the strap through a tunnel of fibers in the flexible seat 201. The support strap 242 is attached to the flexible seat 201 when it extends along the flexible seat 201 between the first side 201a and the second side 201b. For example, the flexible seat portion 201 may have a width from a first side portion 201a to a second side portion 201b, and the support strap 242 may be attached to the flexible seat portion 201 along at least 50% of the width, or along the entire width.

[0071] The support straps 242 extend along the lateral direction A, along the seat pan 204 and / or seat back 202, and optionally along the first side wall 206(1) and the second side wall 206(2). The support straps 242 are attached to a pair of leg connectors 240(1). For example, each support strap 242 is fixedly attached to the pair of leg connectors 240(1) by sewing, or by rivets, screws, or other suitable fasteners. The support straps 242 may have a fixed length between the first leg connector 240(1) and the second leg connector 240(1). The fixed length is selected so that the desired tension is applied to each support strap 242 when the pair of leg connectors 240(1) are connected to the transport frame 100', without the caregiver needing to adjust the tension applied to the support straps 242. In fact, the length of the support strap 242 is fixed so that the tension applied to the support strap 242 cannot be adjusted. Fixing the length of the support strap 242 ensures that the flexible seat 201 can be easily and securely installed without the caregiver's concern of failing to properly pull the support strap 242.

[0072] The support strap 242 is attached to the flexible material seat 201 beneath the sheet pan 204 so as to provide structural support to the flexible material seat 201 beneath the sheet pan 204. Thus, the support strap 242 is configured to provide structural support to resist movement of the sheet pan 204 along the vertical direction V.

[0073] Referring to Figures 25 and 30, the leg couplers 240(1) are configured to be detachably coupled to the transport frame 100'. For example, the leg couplers 240(1) are configured to be detachably coupled to the corresponding front legs 108(1) and 108(2) of the transport frame 100'. The transport frame 100' includes a pair of leg couplers 152(1) (indicated in Figure 25) configured to be coupled to the pair of leg couplers 240(1) of the flexible object seat assembly 200. The leg couplers 240(1) and 152(1) are any suitable couplers that can attach the flexible object seat 201 to the first front legs 108(1) and the second front legs 108(2). For example, each leg coupler 240(1) of the flexible seat assembly 200 has one projection and one opening, and each corresponding leg coupler 152(1) of the transport frame 100' has the other projection and one opening configured to engage with the other projection and one opening so as to connect the leg coupler 240(1) to one of the first front legs 108(1) and the second front legs 108(2). The leg coupler 152(1) is securely attached to the transport frame 100' such that the movement of the first front legs 108(1) and the second front legs 108(2) results in the corresponding movement of the leg coupler 152(1). Furthermore, the leg connector 240(1) of the flexible seat assembly 200 is configured to be securely attached to the leg connector 152(1) such that the movement of the first front leg 108(1) and the second front leg 108(2) results in the corresponding movement of the leg connector 240(1) of the flexible seat assembly 200.

[0074] As shown in Figure 30, the flexible object seat assembly 200 includes a pair of handle connectors 240(2) that are fixedly attached to the flexible object seat 201. Each handle connector 240(2) is configured to detachably connect the sides 201a and 201b of the flexible object seat 201 to one of the first handle portion 104a and the second handle portion 104b. For example, a pair of handle connectors 240(2) is configured to detachably connect the first side 201a and the second side 201b of the flexible object seat 201 to the first handle portion 104a and the second handle portion 104b, respectively. The handle connectors 240(2) are fixedly attached to the flexible object seat 201. The handle connectors 240(2) are spaced apart from each other along the lateral direction A. For example, the handle connector 240(2) is positioned on the first side 201a and the second side 201b of the flexible material seat 201.

[0075] In some examples, the flexible seat assembly 200 includes a pair of reclining straps 244 attached to the flexible seat 201 along the seat back 202. The reclining straps 244 are, for example, fabric, sash, rope, or cord. A first reclining strap 244 extends from a first side 201a of the flexible seat 201 toward the center of the seat back 202, and a second reclining strap 244 extends from a second side 201b of the flexible seat 201 toward the center of the seat back 202. Each reclining strap 244 is attached to the flexible seat 201 by any suitable technique, such as sewing the strap or passing the strap through a tunnel of fibers in the flexible seat 201.

[0076] Each reclining strap 244 extends along the lateral direction A, along the seat back 202, and can optionally extend along either the first side wall 206(1) or the second side wall 206(2). Each reclining strap 244 is attached to one of the handle connectors 240(2). For example, the first end of each reclining strap 244 is fixedly attached to one of the handle connectors 240(2) by sewing, or by rivets, screws, or other suitable fasteners. The transport cart 10 is equipped with a reclining locking section 246. The second end of each reclining strap 244 is received through the reclining locking section 246. The reclining locking part 246 is configured to slide along a pair of reclining straps 244 to adjust the length of each reclining strap 244 from the corresponding one of the handle connectors 240(2) to the reclining locking part 246. Adjusting the length of each reclining strap 244 allows the seat back 202 to be more reclined or more tilted, and the reclining locking part 246 selectively locks at different positions along the reclining straps 244 to fix the seat back 202 in different reclining positions. For example, the reclining locking part 246 is configured to slide up a pair of reclining straps 244 to make the seat back 202 more tilted by shortening the length. Furthermore, the reclining locking part 246 is configured to slide down a pair of reclining straps 244 to make the seat back 202 more reclined by increasing the length.

[0077] Referring to Figures 29 and 30, the handle couplers 240(2) are configured to be detachably connected to the transport frame 100'. For example, each handle coupler 240(2) is configured to be detachably connected to the corresponding handle portions 104a, 104b of the transport frame 100'. The transport frame 100' includes a pair of handle couplers 152(2) (indicated in Figure 29) configured to connect to the pair of handle couplers 240(2) of the flexible seat assembly 200. The handle couplers 240(2) and 152(2) are any suitable couplers that can attach the flexible seat 201 to the first handle portion 104a and the second handle portion 104b. For example, each of the handle connectors 240(2) of the flexible seat assembly 200 has one projection and one opening, and each corresponding handle connector 152(2) of the transport frame 100' has the other projection and one opening configured to engage with the other projection and one opening so as to connect the handle connector 240(2) to one of the first handle portion 104a and the second handle portion 104b. The handle connector 152(2) is securely attached to the transport frame 100' such that the movement of the first handle portion 104a and the second handle portion 104b results in the corresponding movement of the handle connector 152(2). Furthermore, the handle connector 240(2) of the flexible seat assembly 200 is configured to be securely attached to the handle connector 152(2) such that the movement of the first handle portion 104a and the second handle portion 104b results in the corresponding movement of the handle connector 240(2) of the flexible seat assembly 200.

[0078] As shown in Figure 30, the flexible seat assembly 200 includes a pair of seat curvature connectors 240(3) that are fixedly attached to the flexible seat 201. Each seat curvature connector 240(3) is configured to detachably connect the seat curvature 204a of the flexible seat 201 to the transport vehicle frame 100', such as the cross member 170. For example, a pair of seat curvature connectors 240(3) is configured to detachably connect the first and second sides of the flexible seat 201 to the first and second sides of the cross member 170, respectively. The seat curvature connectors 240(3) are fixedly attached to the flexible seat 201. The seat curvature connectors 240(3) are spaced apart from each other along the lateral direction A. For example, the seat curved section coupler 240(3) is positioned adjacent to the first side 201a and the second side 201b of the flexible material seat 201.

[0079] In some examples, the flexible seat assembly 200 includes a support strap 245 attached to the flexible seat 201 along the seat pan 204 and / or seat back 202, adjacent to the seat curve 204a. The support strap 245 is, for example, a fabric, a belt, a rope, or a cord. The support strap 245 extends from a first side 201a of the flexible seat 201 to a second side 201b of the flexible seat 201. The support strap 245 is attached to the flexible seat 201 by any suitable technique, such as sewing the strap or passing the strap through a tunnel of fibers in the flexible seat 201. The support strap 245 is attached to the flexible seat 201 when it extends along the flexible seat 201 between the first side 201a and the second side 201b. For example, the flexible seat portion 201 may have a width from the first side 201a to the second side 201b, and the support strap 245 may be attached to the flexible seat portion 201 along at least 50% of its width, such as along 60% of its width, 70% of its width, 80% of its width, 90% of its width, or the entire width.

[0080] The support straps 245 extend along the lateral direction A and along the seat pan 204 and / or seat back 202. The support straps 245 are attached to a pair of seat curvature connectors 240(3). For example, each support strap 245 is fixedly attached to the pair of seat curvature connectors 240(3) by sewing or by rivets, screws or other suitable fasteners. The support straps 245 may have a fixed length between the first seat curvature connector 240(3) and the second seat curvature connector 240(3). The fixed length is selected so that the desired tension is applied to each support strap 245 when the pair of seat curvature connectors 240(3) are connected to the transport frame 100', without the caregiver needing to adjust the tension applied to the support straps 245. In fact, the length of the support straps 245 is fixed so that the tension applied to the support straps 245 cannot be adjusted. By fixing the length of the support strap 245, it is possible to ensure that the flexible seat 201 can be easily and securely installed without the caregiver having to worry about failing to properly pull the support strap 245.

[0081] The support strap 245 is attached to the flexible seat portion 201 behind the seat back 202 so as to provide structural support to the flexible seat portion 201 behind the seat back 202. Thus, the support strap 245 is configured to provide structural support to resist movement of the seat back 202 along the longitudinal direction L. Additionally or alternatively, the support strap 245 is attached to the flexible seat portion 201 below the seat pan 204 so as to provide structural support to the flexible seat portion 201 below the seat pan 204. Thus, the support strap 245 is configured to provide structural support to resist movement of the seat pan 204 along the vertical direction V.

[0082] Referring to Figures 29 and 36, the seat curved section couplers 240(3) are configured to be detachably connected to the transport frame 100'. For example, the transport frame 100' includes a pair of seat curved section couplers 152(3) configured to connect to a pair of seat curved section couplers 240(3) of the flexible material seat assembly 200. The seat curved section couplers 240(3) and 152(3) are any suitable couplers that can attach the flexible material seat 201 to the crossbar 170. For example, each of the seat curved section couplers 240(3) of the flexible material seat assembly 200 has one projection and one opening, and each corresponding seat curved section coupler 152(3) of the transport frame 100' has the other projection and one opening configured to engage with the other projection and opening so as to connect the seat curved section coupler 240(3) to the crossbar 170. The seat curved section coupler 152(3) is securely attached to the transport vehicle frame 100' such that the movement of the cross member 170 results in a corresponding movement of the seat curved section coupler 152(3). Furthermore, the seat curved section coupler 240(3) of the flexible material seat assembly 200 is configured to be securely attached to the seat curved section coupler 152(3) such that the movement of the cross member 170 results in a corresponding movement of the seat curved section coupler 240(3) of the flexible material seat assembly 200.

[0083] Figure 27 shows an example of a coupler 152 used to mount one or more of the following: (i) each of the leg couplers 152(1) of the transporter frame 100', (ii) each of the handle couplers 152(2) of the transporter frame 100', or (iii) each of the seat curve couplers 155 of the transporter frame 100'. The coupler 152 of the transporter frame 100' is provided with a projection. The projection extends along a first direction D1, such as inward, from one of the first handle portion 104a and the second handle portion 104b, or from one of the first front leg portion 108(1) and the second front leg portion 108(2). The projection comprises a neck portion 152a and an enlarged head portion 152b extending from the neck portion 152a. The neck portion 152a extends from the transport vehicle frame 100' along the first direction D1, and the head portion 152b extends from the neck portion 152a along the first direction D1. The head portion 152b may have a cross-sectional dimension along the second direction D2 that is greater than the cross-sectional dimension of the neck portion 152a along the second direction D2, which is perpendicular to the first direction D1. In some examples, the head portion 152b may have a cross-sectional shape that is circular in a plane perpendicular to the first direction D1, but it may have other cross-sectional shapes.

[0084] Figure 28 shows an example of a coupler 240 used to mount one or more of the following: (i) each of the leg couplers 240(1) of the flexible seat assembly 200, (ii) each of the handle couplers 240(2) of the flexible seat assembly 200, or (iii) each of the seat curve couplers 240(3) of the flexible seat assembly 200. The coupler 240 of the flexible seat 201 is formed from a polymer such as plastic or other suitable material. The coupler 240 is attached to the flexible seat 201, for example, to one of the first side wall 206(1) and the second side wall 206(2) of the flexible seat 201. For example, the coupler 240 is attached to the flexible seat 201 by sewing, riveting, or other suitable fasteners. In some examples, the coupler 240 may have a body 240a having at least a portion 240b having a thickness that is sewn onto the flexible seat portion 201. The body 240a may have a planar shape. In some examples, the body 240a defines an opening 240c configured to receive a portion of a support strap 242 or a reclining strap 244 through it, so as to connect the strap to the coupler 240.

[0085] The main body 240a may further define an opening 240d that penetrates itself and extends along a first direction D1. The opening 240d may have the shape of a keyhole. The opening 240d comprises a first portion 240e and a first portion 240e extending along a selected direction D1. S2 It may have a second portion 240f spaced apart along the direction D. Preferably, selected direction D S2The direction is downward when couplers 240(1) and 240(2) are mounted, and upward when coupler 240(3) is mounted. The first portion 240e may have a cross-sectional dimension along the second direction D2 that is smaller than the cross-sectional dimension of the second portion 240f along the second direction D2. The first portion 240e may have a cross-sectional dimension along the second direction D2 that is smaller than the cross-sectional dimension of the head 152b of coupler 152 along the second direction D2, but larger than the cross-sectional dimension of the neck 152a of coupler 152 along the second direction D2. The second portion 240f may have a cross-sectional dimension along the second direction D2 that is larger than the cross-sectional dimension of the head 152b along the second direction D2. Therefore, the head 152b is configured to be received through the second part 240f, and the coupler 240 is positioned in the selected direction D until the neck 152a is positioned in the first part 240e and the coupler 240 is caught between the head 152b and part of the transport vehicle frame 100'. S2 Along (Selection direction D) S2 It can be translated (downward, etc.) along the same direction.

[0086] Referring to Figures 29, 31, 32, and 33, the transport frame 100' is provided with a pair of upper handle couplers 154, and the flexible material assembly 200 is provided with a corresponding pair of upper handle couplers 250 (indicated in Figure 33). Each upper handle coupler 154 is configured to connect to a pair of upper handle couplers 250 of the flexible material seat assembly 200. The upper handle couplers 154 and 250 are any suitable couplers that can attach the flexible material seat 201 to the first handle portion 104a and the second handle portion 104b. For example, each of the upper handle connectors 250 of the flexible seat assembly 200 is provided with one projection and one opening, and each of the corresponding upper handle connectors 154 of the transport vehicle frame 100' is provided with the other projection and one opening, which is configured to engage with the other projection and one opening so as to connect the upper handle connector 250 to one of the first handle portion 104a and the second handle portion 104b.

[0087] The upper handle connector 154 is securely attached to the transport vehicle frame 100' such that the movement of the first handle portion 104a and the second handle portion 104b results in a corresponding movement of the upper handle connector 154. Furthermore, the upper handle connector 250 of the flexible material seat assembly 200 is configured to be securely attached to the handle connector 154 such that the movement of the first handle portion 104a and the second handle portion 104b results in a corresponding movement of the handle connector 250 of the flexible material seat assembly 200.

[0088] The upper handle connectors 250 are fixedly attached to the flexible material seat 201. For example, the upper handle connectors 250 are attached to the flexible material seat 201 by sewing, or by rivets, screws, or other suitable fasteners. Each upper handle connector 250 is configured to detachably connect the sides 201a, 201b of the flexible material seat 201 to one of the first handle portion 104a and the second handle portion 104b. For example, a pair of upper handle connectors 250 are configured to detachably connect the first side 201a and the second side 201b of the flexible material seat 201 to the first handle portion 104a and the second handle portion 104b, respectively. The upper handle connectors 250 are spaced apart from each other along the lateral direction A. For example, the upper handle connector 250 is positioned on the first side 201a and the second side 201b of the flexible material seat 201.

[0089] Figures 31 and 32 show an example of an upper handle coupler 154 of the transport vehicle frame 100'. The upper handle coupler 154 has a recess 154a configured to receive at least a portion of one of the corresponding upper handle couplers 250. The recess 154a is located in the selected direction D S3It has an upper end 154b and a lower end 154c that are offset from each other along the direction D. The upper end 154b is open from which the upper handle fastener 250 can be removed along the upward direction. The lower end 154c defines a stopper that prevents the upper handle fastener 250 from being removed along the downward direction. The recess 154a is elongated from the upper end 154b to the lower end 154c. The recess 154a defines an opening 154d on the outer surface of the upper handle coupler 154. The opening 154d extends between the upper end 154b and the lower end 154c. The opening 154d is tapered in relation to the inner portion of the recess 154a. For example, the opening 154d is in the selected direction D S3 The recess 154a may have a cross-sectional dimension in a direction perpendicular to the recess, and this cross-sectional dimension is smaller than the cross-sectional dimension of the inner portion of the recess 154a. The recess 154a may have any other suitable shape, such as a fan shape, or a triangle or T-shape with a narrow opening 154d.

[0090] Referring to Figure 33, the upper handle connector 250 may have a body 250a having at least a portion 250b having a thickness that is sewn onto the flexible material seat 201. The body 250a may have a planar shape. The upper handle connector 250 is provided with a projection 250c extending from the body 250a. The projection 250c is in the selected direction D S3 It has a first end 250d and a second end 250e that are offset from each other along the selected direction D. The projection 250c is elongated from the first end 250d to the second end 250e. The projection 250c may have an enlarged outer portion 250f. The outer portion 250f extends between the first end 250d and the second end 250e. The projection 250c may have an inner portion 250g that is attached to the body 250a. The inner portion 250g is tapered relative to the outer portion 250f. For example, the outer portion 250f is in the selected direction D S3The projection 250c may have a cross-sectional dimension in a direction perpendicular to the projection, and this cross-sectional dimension is greater than the cross-sectional dimension of the inner portion 250g. The projection 250c may have any other suitable shape, such as a fan shape, or a triangle or T-shape with an enlarged outer portion 250f. The projection 250c of the upper handle coupler 250 is configured to match the recess 154a of the upper handle coupler 154 so as to prevent the projection 250c from being dislodged from the recess 154a along the outward direction. For example, the cross-sectional dimension of the enlarged outer portion 250f of the projection 250c is greater than the cross-sectional dimension of the opening 154d of the recess 154a. In an alternative example, it is understood that the upper handle coupler 154 includes the projection 250c and the upper handle coupler 250 defines the recess 154a.

[0091] The flexible seat assembly 200 is constructed by (1) attaching one corresponding end of the upper handle connector 250 to the corresponding end of the first handle portion 104a and the second handle portion 104b, (2) pulling the side walls 206(1) and 206(2) downward to apply tension to the side walls 206(1) and 206(2), and (3) maintaining tension in the side walls 206(1) and 206(2). The side walls 206(1) and 206(2) are positioned by attaching corresponding ends of the lower side wall connectors 228(1) and 228(2) to corresponding ends of the first handle portion 104a and the second handle portion 104b, below corresponding ends of the stop portions 130(1) and 130(2). The tension on the side walls 206(1) and 206(2) can maintain a relationship in which the side walls 206(1) and 206(2) are strongly pulled against one of the first handle portion 104a and the second handle portion 104b. In some examples, the flexible seat assembly 200 is configured so that it cannot be installed by attaching one of the corresponding lower side wall connectors 228(1) and 228(2) to the corresponding one of the first handle portion 104a and the second handle portion 104b below the corresponding one of the stop portions 130(1) and 130(2), and then attaching the corresponding one of the upper handle connectors 250 to the corresponding one of the first handle portion 104a and the second handle portion 104b.

[0092] Referring back to Figures 31 and 32, each upper handle connector 154 comprises a first side 154a and a second side 154b. The first side 154a is configured to be attached to one of the first handle portion 104a and the second handle portion 104b. For example, the first side 154a is configured to be attached to one of the first handle portion 104a and the second handle portion 104b by rivets, screws, or other suitable fasteners. The first side 154a may have a shape such as a curved shape that matches the shape of one of the first handle portion 104a and the second handle portion 104b. In some examples, the second side 154b of each upper handle connector 154 is configured to detachably connect a caregiver form 600' to the handle 104. For example, each upper handle connector 154 is equipped with a fastener 156 configured to be detachably connected to the end of the caregiver form 600'. The fastener 156 is any suitable fastener. Figures 31 and 32 show an example in which the fastener 156 is equipped with a projection having a "T" shape configured to align with a "T" shaped recess at the end of the caregiver form 600'.

[0093] As shown in Figure 34, in some examples, the upper end of the flexible seat portion 201 is configured to connect to the caregiver form 600' between the first handle portion 104a and the second handle portion 104b. For example, the caregiver form 600' includes an opening 604 (referenced in Figures 29 and 34), and the upper end of the flexible seat portion 201 includes a tab or anchoring portion 252 configured to be received by the opening 604. The caregiver form 600' includes a raised portion 606 adjacent to the opening 604. The upper end of the flexible seat portion 201 may be positioned along the raised portion 606 so that the raised portion 606 gives shape to the upper end of the flexible seat portion 201.

[0094] It should be noted that the illustrations and descriptions of the examples and embodiments shown in the figures are for illustrative purposes only and should not be construed as limiting the disclosure. Those skilled in the art will understand that the disclosure considers a variety of embodiments. It should also be understood that the concepts described above in the examples and embodiments may be used alone or in combination with any of the other examples and embodiments described above. It should further be understood that various alternative examples and embodiments described above with respect to one illustrated embodiment may apply to all examples and embodiments described herein unless otherwise indicated.

[0095] Unless otherwise explicitly stated, each number and range should be interpreted as approximate, as if the words “about,” “approximately,” or “substantially” preceded the value or range. The terms “about,” “approximately,” or “substantially,” unless otherwise stated, may be understood as describing a range that is within 15 percent of the stated value.

[0096] Among the many terms used herein, conditional words such as “it is possible,” “it can,” “it may be,” “may,” and “for example,” unless otherwise explicitly stated or understood in the context in which they are used, are generally intended to convey that certain features, elements, and / or steps are included in certain embodiments but not in others. Therefore, such conditional words are generally not intended to mean that features, elements, and / or steps are any way required in one or more embodiments, or that one or more embodiments necessarily include logic for determining, with or without the author’s input or stimulus, whether these features, elements, and / or steps are included in or implemented in any particular embodiment. Terms such as “equipped with,” “contains,” and “have” are synonyms and are used inclusively in an open-ended manner, not excluding additional elements, features, actions, behaviors, etc. Also, the term “or” is used in its inclusive sense (and not in its exclusive sense) to mean one, some, or all of the elements in a list, for example, when used to connect a list of elements.

[0097] While specific examples are provided, these examples are not intended to limit the scope of the invention disclosed herein. Therefore, nothing in the foregoing description is intended to imply that any specific feature, characteristic, step, module, or block is required or essential. In fact, the novel methods and systems described herein can be embodied in various other forms, and furthermore, various omissions, substitutions, and modifications in the forms of the methods and systems described herein can be made without departing from the spirit of the invention disclosed herein. The appended claims and their equivalents are intended to cover such forms or modifications within the specific scope and spirit of the invention disclosed herein.

[0098] It should be understood that the steps of the exemplary methods described herein do not necessarily have to be performed in the order they are described, and the order of the steps in such methods is merely illustrative. Similarly, additional steps may be included in such methods, and certain steps may be omitted or combined in a manner consistent with the various embodiments of the invention.

[0099] If the elements in the claims of the attached method are proposed in a specific sequence, if any, by corresponding coding, but the proposal of the claim does not include a specific flow for implementing some or all of those elements, then those elements are not necessarily intended to be limited to being implemented in that specific flow.

[0100] The terms “inward,” “outward,” “upward,” and “downward” refer, respectively, to directions toward or away from the geometric center of the transport vehicle and its components.

[0101] It is understood that references to “one” in this specification to describe features such as components or steps do not exclude additional features or multiples of features. For example, a reference to a device having, comprising, including, or defining “one” feature does not exclude the device having, comprising, including, or defining two or more of that feature, as long as the device has, comprises, includes, or defines at least one of that feature. Similarly, a reference to “one of” multiple features in this specification does not exclude the invention from including two or more of those features. For example, a reference to a device having, comprising, including, or defining “either a projection or a recess” does not exclude the device having both a projection and a recess. [Explanation of Symbols]

[0102] 10 Child Carrier 100, 100' Child Carrier Frame 100a front end 100b rear end 100c First side 100d Second side 100e top end 100f bottom end 102 Lower frame section 103 Cross braces 104 Handle 104a First handle portion 104b Second handle section 104c Third handle section 105 Cross brace 106 Legs 108 Front leg 110 Hind leg 112 Wheels 114 Joint 116 Footrest 117 Cross braces 118 Leg Panel 118a top end 118b Bottom end 118c Reinforcement material 118d Leg panel connector 118e aperture 119 Front support edge 120 Leg coupler 122 Part 1 124 Part 2 126 Space 128 Upper handle connector 128a Neck 128b Head 130 Stop part 132 Folding Hub 134 Armrest 136 Front leg plate 136a Recess 138 Hind leg plate 140 Handle Plate 140a recess 142 Folding stopper 142a protrusion 143 Springs, elastic components 144 Armrest Hub 144a Armrest connector 146 Armrest retaining mechanism 146a Engagement surface 146b Slope 148 Springs, elastic components 150 Stop part 152(1) Leg coupler 152(2) Handle connector 152(3) Seat curved section coupler 152a Neck 152b Head 154 Upper handle connector 154a recess 154a First side 154b Top 154b Second side 154c bottom end 154d aperture 156 Fasteners 160 Folding Actuator 162 First strap 164 Pivot Body 164a First end 164a Second end 166 Link Mechanism 168 Pulley 170 Crosspiece 172 Second strap 174 Coupler 174a First hole 174b Second hole 200 Flexible object seat assembly 201 Flexible object seat 201a First side 201b Second side 202 Seatback 204 Sheet Pan 204a Curved section of the sheet 204b front end 206 Side wall 208 Leg Pads 210 Leg coupler 210a rigid protrusion 210b Movable projection 212 Support strap 214 cabinets 214a First housing section 214b Second enclosure section 214c recess 214d aperture 216 Shuttle 216a Working surface 218 Biasing member 220 Leg Pad Connector 222 Upper handle connector 222a Main body 222b tab 222c aperture 222d Part 1 222e Second part 222f Reinforcement opening 224 Obi cord 226 Reinforcement material 226a First end 226b Second end 226c central part 228 Lower sidewall coupler 228a recess 228b Tunnel 228c main unit 230 Joint 230a Part 1 230b Second part 240 Coupler 240(1) Leg coupler 240(2) Handle connector 240(3) Seat curved section coupler 240a Main Unit 240b part 240c aperture 240d aperture 240e Part 1 240f Part 2 242 Support strap 244 Reclining Straps 245 Support strap 246 Reclining locking mechanism 250 Upper handle connector, upper handle fastener 250a main unit 250b part 250c protrusion 250d First end 250e Second end 250f outer part 250g inner part 252 tabs, mooring section 300 Canopy 302 Arcuate part 400 Basket 400 Safety belts 401 Crotch buckle 402 First strap 404 Second strap 406 Crotch strap 500 Child Car Seat 600, 600' Caregiver-use molded body 602 recess 604 recess 604 Aperture 606 Ridge part A. Lateral direction A A Pivot axis of pivot body 164 A P Pivot axis of folding hub 132 D1 First direction D2 Second Direction D S Selection direction D S1 Selection direction D S2 Selection direction D S3 Selection direction L Longitudinal direction V Vertical direction

Claims

1. A transport vehicle frame configured to support a removable child seat above the riding surface, A lower frame section with multiple legs, A frame coupler comprising a first part and a second part spaced apart from each other to define space between them, A flexible seat assembly configured to be detachably connected to the frame, A flexible seat portion having a seat back and a seat pan extending from the seat back, At least one seat connector configured to be detachably connected to at least one frame connector of the transport vehicle frame, the at least one seat connector positioned at least partially in the space between the first portion and the second portion, A flexible seat assembly equipped with, Equipped with a transport vehicle frame, A child carrier, wherein the first portion comprises the other of a projection and opening configured to engage with one of the projections and openings of the at least one seat connector of the flexible seat assembly, and the second portion comprises the other of a projection and opening configured to engage with one of the projections and openings of the at least one seat connector of the flexible seat assembly.

2. The child carrier according to claim 1, wherein at least one of the projections is movable between a retracted position and an extended position.

3. The first portion is provided with an opening, The child carrier according to claim 1, wherein the at least one seat connector of the flexible seat assembly comprises a housing and a shuttle supported by the housing, and carries a projection, and the shuttle is movable so as to move the projection between a retracted position and an extended position relative to the housing.

4. The child transport vehicle according to claim 1, wherein the plurality of legs each have at least one rear leg, and the at least one frame connector of the transport vehicle frame is attached to the at least one rear leg.

5. The child transport vehicle according to claim 1, wherein the at least one connector of the flexible seat assembly is configured to be detachably connected to the at least one frame connector of the transport vehicle frame so that the at least one seat connector of the flexible seat assembly and the at least one frame connector of the frame are securely attached to the transport vehicle frame.

6. A transport vehicle frame configured to support a removable flexible seat assembly above the riding surface, A lower frame section having multiple legs, and A handle having a first handle portion and a second handle portion that extend away from the lower frame portion and are spaced apart from each other so as to define a space between them, A transport vehicle frame having, A flexible seat assembly that is detachably connected to the frame and configured to fit into a defined space, A flexible seat having a seat back, a seat pan extending forward from the seat back, and a first side wall and a second side wall extending forward from the seat back, An upper coupler configured to detachably connect the first side wall to the first handle portion, A downward coupler configured to detachably connect the first side wall to the first handle portion, A flexible seat assembly equipped with, Equipped with, A child transport vehicle configured such that the first side wall can be attached to the first handle portion by connecting the upper handle connector to the first handle portion and then connecting the lower connector to the first handle portion.

7. The transport vehicle frame is equipped with a stopper that is attached to the first handle portion, The lower coupler is configured to be connected to the first side wall below the stopper so that the stopper provides an obstruction to prevent the lower coupler from moving upward along the first handle portion. The child transport vehicle according to claim 6, wherein the first side wall is pulled when the upper coupler is connected to the first handle portion and the lower coupler is connected to the first handle portion relative to the lower end of the stop portion.

8. The child transport vehicle according to claim 6, wherein the transport vehicle frame is equipped with an upper connector attached to the first handle portion which is configured to be detachably connected to the upper connector of the flexible seat assembly.

9. The upper coupling of the transport vehicle frame is provided with a projection having a neck portion and a head portion, The child carrier according to claim 8, wherein the upper connector of the flexible seat assembly has an opening having a first portion and a second portion spaced apart from the first portion along the downward direction, the first portion having a cross-sectional dimension smaller than the cross-sectional dimension of the second portion, the first portion being configured to receive the head through itself, and the upper connector of the flexible seat assembly being configured to translate along the neck portion such that the neck portion is received by the second portion and the upper connector of the flexible seat assembly is caught between the head portion and the first handle portion.

10. A transport vehicle frame configured to support a removable flexible seat assembly above the riding surface, A lower frame section having multiple legs, and A handle having a first handle portion and a second handle portion that extend upward from the lower frame portion and are spaced apart from each other to create space between them for the flexible material seat assembly, A transport vehicle frame having, A flexible seat assembly configured to be detachably connected to the frame, A flexible seat having a seat back, a seat pan extending forward from the seat back, and a first side wall and a second side wall extending forward from the seat back, A canopy having an arched section, and A connector configured to connect both the first side wall and the arched portion to the first handle portion, A flexible seat assembly equipped with, A child transport vehicle equipped with [features / equipment].

11. The child transport vehicle according to claim 10, wherein the coupling device has a body that defines a recess configured to receive the first handle portion so as to connect to the first handle portion.

12. The child carrier according to claim 10, wherein the coupler is fixedly attached to the first side wall such that detachment of the coupler from the first handle portion results in the detachment of at least a portion of the first side wall from the first handle portion.

13. The child carrier according to claim 10, wherein the coupling portion comprises a first portion which is integral with the main body of the coupler, and a second portion which is configured to rotate relative to the first portion so as to rotate the arch-shaped portion.

14. It is a transport vehicle frame, The first and second sides are spaced apart from each other along the lateral direction, creating a space between them. A lower frame portion having a pair of rear leg portions spaced apart from each other along the lateral direction, and at least one front leg portion, A handle extending upward from the aforementioned lower frame portion, At least one folding locking mechanism is configured to transition between a locking position that prevents the transport vehicle frame from being folded and a locking release position that allows the transport vehicle frame to be folded, and A folding actuator having a first actuator strap operably connected to at least one folding locking portion such that the movement of the first strap moves the at least one folding locking portion to the unlocked position, A transport vehicle frame equipped with, A flexible object seat portion configured to be attached to the transport vehicle frame between the first side and the second side, A seat back, and a seat pan extending from the seat back in the curved portion of the seat, The second actuator strap, and, A coupler configured to connect the first actuator strap and the second actuator strap such that the movement of the first actuator strap causes the movement of the second actuator strap to move the at least one folding retaining portion to the retaining release position, A flexible seat section equipped with, A child transport vehicle equipped with [features / equipment].

15. The child carrier according to claim 14, wherein the first actuator strap extends between the first and second sides of the carrier frame.

16. The child carrier according to claim 14, wherein the folding actuator is configured to convert the movement of the first actuator strap along the operating direction into the movement of the at least one folding locking portion to the locking release position.

17. The child carrier according to claim 14, wherein the carrier frame comprises a transverse member extending between the first side and the second side of the carrier frame, the transverse member being configured to protect at least a portion of the first actuator strap from accidental engagement.

18. The child carrier according to claim 17, wherein the cross member has a recess in itself, at least a portion of the first actuator strap is positioned in the recess, and at least a portion of the first actuator strap is exposed to the outside of the recess.

19. The child carrier according to claim 18, wherein the first and second ends of the first actuator strap are positioned in the recess, and the central portion of the first actuator strap extends outward from the recess so as to be accessible to a caregiver.

20. The child carrier according to claim 14, wherein at least a portion of the second actuator strap is accessible to a caregiver from above the seat pan or the curved portion of the seat.

21. The child carrier according to claim 20, wherein a portion of the second actuator strap is positioned below the seat pan or the curved portion of the seat so that it can be detachably connected to the first actuator strap by the coupler.

22. The child carrier according to claim 14, wherein the child carrier is configured to be foldable using one hand by gripping the child carrier with either the first actuator strap or the second actuator strap, and pulling the child carrier upward with either the first actuator strap or the second actuator strap.

23. The child carrier according to claim 22, wherein the child carrier is configured such that when the first actuator strap or the second actuator strap is pulled upward, the folding actuator moves each folding locking part from the locking position to the locking release position such that the handle and the at least one front leg rotate toward the pair of rear legs into a folded configuration.

24. The child carrier according to claim 14, wherein the second actuator strap is fixed to the flexible seat so that removing the flexible seat from the carrier frame causes the second actuator strap to be removed from the carrier frame together with the flexible seat.

25. The child transport vehicle according to claim 24, wherein the first actuator strap is configured such that removing the flexible seat from the transport vehicle frame does not cause the first actuator strap to be removed from the transport vehicle frame.

26. It is a transport vehicle frame, A first side and a second side that are spaced apart from each other along the lateral direction, A pair of hind legs spaced apart from each other along the lateral direction, and at least one forelegs, At least one folding locking mechanism is configured to transition between a locking position that prevents the transport vehicle frame from being folded and a locking release position that allows the transport vehicle frame to be folded. A folding actuator having an actuator strap operably connected to at least one folding locking portion such that the movement of the actuator strap moves the at least one folding locking portion to the locking release position, A transverse member extending between the first side and the second side, wherein the actuator strap extends between the first side and the second side, and at least a portion of the actuator strap extends below or inside the transverse member, A child's transport vehicle equipped with a transport vehicle frame.

27. The child carrier according to claim 26, wherein the actuator strap extends between the first side and the second side of the carrier frame.

28. The child carrier according to claim 26, wherein the folding actuator is configured to convert the movement of the actuator strap along the operating direction into the movement of the at least one folding locking portion to the locking release position.

29. The child carrier according to claim 26, wherein the cross member has a recess in itself, at least a portion of the actuator strap is positioned in the recess, and at least a portion of the actuator strap is exposed to the outside of the recess.

30. The child carrier according to claim 29, wherein the first and second ends of the actuator strap are positioned in the recess, and the central portion of the actuator strap extends outward from the recess so that it is accessible to a caregiver.

31. The child transport vehicle according to claim 26, comprising a flexible seat portion configured to be attached to the transport vehicle frame between the first side and the second side, the flexible seat portion comprising a seat back and a seat pan extending from the seat back in a curved portion of the seat.

32. The actuator strap is a first actuator strap, and the flexible seat portion further comprises a second actuator strap positioned in the seat pan or the seat curve, such that the second actuator strap is accessible from above the seat pan or the seat curve. The child carrier according to claim 31, further comprising a coupling device configured to connect the first actuator strap and the second actuator strap such that the movement of the second actuator strap causes the movement of the first actuator strap to move the folding stopper to the stopper release position.

33. The child carrier according to claim 32, wherein at least a portion of the second actuator strap is accessible to a caregiver from above the seat pan or the curved portion of the seat.

34. The child carrier according to claim 33, wherein a portion of the second actuator strap is positioned below the seat pan or the curved portion of the seat so that it can be detachably connected to the actuator strap by the coupler.

35. The child carrier according to claim 32, wherein the child carrier is configured to be foldable using one hand by gripping the child carrier with either the first actuator strap or the second actuator strap, and pulling the child carrier upward with either the actuator strap or the second actuator strap.

36. The child carrier according to claim 35, wherein the child carrier is configured such that when the actuator strap or the second actuator strap is pulled upward, the folding actuator moves each folding locking part from the locking position to the locking release position such that the handle and the at least one front leg rotate toward the pair of rear legs into a folded configuration.

37. The child carrier according to claim 31, wherein the second actuator strap is fixed to the flexible seat such that removing the flexible seat from the carrier frame causes the second actuator strap to be removed from the carrier frame together with the flexible seat.

38. The child transport vehicle according to claim 37, wherein the actuator strap is configured such that removing the flexible seat from the transport vehicle frame does not cause the actuator strap to be removed from the transport vehicle frame.

39. This is a method for assembling a child transport vehicle. The steps include: detachably connecting the first upper coupler on the side wall of the first flexible seat assembly to the first coupler on the upper handle portion of the transport vehicle frame; The steps include: detachably connecting the second upper connector of the side wall of the second flexible seat assembly to the second connector of the upper handle portion of the transport vehicle frame; The steps include: detachably connecting the first lower connector of the side wall of the first flexible seat assembly to the first connector of the lower handle portion of the transport vehicle frame; The steps include: detachably connecting the second lower connector of the side wall of the second flexible seat assembly to the second connector of the lower handle portion of the transport vehicle frame; A method that includes this.

40. The method according to claim 39, wherein the connection between the first lower coupler and the second lower coupler prevents subsequent connection between the first upper coupler and the second upper coupler.

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